Home / 2,278.68-3,417.80-1,663.60

Finding the Fourth Proportional to 2,278.68, 3,417.80 and 1,663.60

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Solution

The fourth proportional to 2,278.68, 3,417.80 and 1,663.60 is: 2,495.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,278.68 : 3,417.80 = 1,663.60 : x
  2. Step 2: Convert to fraction form
    2,278.68/3,417.80 = 1,663.60/x
  3. Step 3: Cross multiply
    2,278.68x = 3,417.80 × 1,663.60
  4. Step 4: Simplify right side
    2,278.68x = 5,685,852.08
  5. Step 5: Solve for x
    x = 5,685,852.08/2,278.68
  6. Step 6: Final answer
    x = 2,495.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.