Home / 7,239.38-9,990.56-4,095.50

Finding the Fourth Proportional to 7,239.38, 9,990.56 and 4,095.50

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Solution

The fourth proportional to 7,239.38, 9,990.56 and 4,095.50 is: 5,651.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,239.38 : 9,990.56 = 4,095.50 : x
  2. Step 2: Convert to fraction form
    7,239.38/9,990.56 = 4,095.50/x
  3. Step 3: Cross multiply
    7,239.38x = 9,990.56 × 4,095.50
  4. Step 4: Simplify right side
    7,239.38x = 40,916,318.00
  5. Step 5: Solve for x
    x = 40,916,318.00/7,239.38
  6. Step 6: Final answer
    x = 5,651.91

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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.