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Finding the Fourth Proportional to 7,232.50, 9,980.72 and 4,088.69

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Solution

The fourth proportional to 7,232.50, 9,980.72 and 4,088.69 is: 5,642.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,232.50 : 9,980.72 = 4,088.69 : x
  2. Step 2: Convert to fraction form
    7,232.50/9,980.72 = 4,088.69/x
  3. Step 3: Cross multiply
    7,232.50x = 9,980.72 × 4,088.69
  4. Step 4: Simplify right side
    7,232.50x = 40,807,999.71
  5. Step 5: Solve for x
    x = 40,807,999.71/7,232.50
  6. Step 6: Final answer
    x = 5,642.31

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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.