Home / 4,713.12-6,505.92-3,140.64

Finding the Fourth Proportional to 4,713.12, 6,505.92 and 3,140.64

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Solution

The fourth proportional to 4,713.12, 6,505.92 and 3,140.64 is: 4,335.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,713.12 : 6,505.92 = 3,140.64 : x
  2. Step 2: Convert to fraction form
    4,713.12/6,505.92 = 3,140.64/x
  3. Step 3: Cross multiply
    4,713.12x = 6,505.92 × 3,140.64
  4. Step 4: Simplify right side
    4,713.12x = 20,432,752.59
  5. Step 5: Solve for x
    x = 20,432,752.59/4,713.12
  6. Step 6: Final answer
    x = 4,335.29

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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.