Home / 5,007.29-6,909.46-2,990.32

Finding the Fourth Proportional to 5,007.29, 6,909.46 and 2,990.32

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Solution

The fourth proportional to 5,007.29, 6,909.46 and 2,990.32 is: 4,126.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,007.29 : 6,909.46 = 2,990.32 : x
  2. Step 2: Convert to fraction form
    5,007.29/6,909.46 = 2,990.32/x
  3. Step 3: Cross multiply
    5,007.29x = 6,909.46 × 2,990.32
  4. Step 4: Simplify right side
    5,007.29x = 20,661,471.68
  5. Step 5: Solve for x
    x = 20,661,471.68/5,007.29
  6. Step 6: Final answer
    x = 4,126.28

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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.