Home / 3,300.79-4,555.08-1,808.76

Finding the Fourth Proportional to 3,300.79, 4,555.08 and 1,808.76

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Solution

The fourth proportional to 3,300.79, 4,555.08 and 1,808.76 is: 2,496.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,300.79 : 4,555.08 = 1,808.76 : x
  2. Step 2: Convert to fraction form
    3,300.79/4,555.08 = 1,808.76/x
  3. Step 3: Cross multiply
    3,300.79x = 4,555.08 × 1,808.76
  4. Step 4: Simplify right side
    3,300.79x = 8,239,046.50
  5. Step 5: Solve for x
    x = 8,239,046.50/3,300.79
  6. Step 6: Final answer
    x = 2,496.08

Related Problems

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Half scale
Find fourth proportional to 6,601.58, 9,110.16 and 3,617.52
Double scale
Find fourth proportional to 3,301.79, 4,556.46 and 1,809.76
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.