Home / 2,905.19-4,008.52-1,646.14

Finding the Fourth Proportional to 2,905.19, 4,008.52 and 1,646.14

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Solution

The fourth proportional to 2,905.19, 4,008.52 and 1,646.14 is: 2,271.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,905.19 : 4,008.52 = 1,646.14 : x
  2. Step 2: Convert to fraction form
    2,905.19/4,008.52 = 1,646.14/x
  3. Step 3: Cross multiply
    2,905.19x = 4,008.52 × 1,646.14
  4. Step 4: Simplify right side
    2,905.19x = 6,598,556.84
  5. Step 5: Solve for x
    x = 6,598,556.84/2,905.19
  6. Step 6: Final answer
    x = 2,271.30

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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.