Home / 3,459.28-4,772.06-2,279.92

Finding the Fourth Proportional to 3,459.28, 4,772.06 and 2,279.92

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Solution

The fourth proportional to 3,459.28, 4,772.06 and 2,279.92 is: 3,145.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,459.28 : 4,772.06 = 2,279.92 : x
  2. Step 2: Convert to fraction form
    3,459.28/4,772.06 = 2,279.92/x
  3. Step 3: Cross multiply
    3,459.28x = 4,772.06 × 2,279.92
  4. Step 4: Simplify right side
    3,459.28x = 10,879,915.04
  5. Step 5: Solve for x
    x = 10,879,915.04/3,459.28
  6. Step 6: Final answer
    x = 3,145.14

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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.