Home / 5,287.47-7,929.75-1,588.86

Finding the Fourth Proportional to 5,287.47, 7,929.75 and 1,588.86

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Solution

The fourth proportional to 5,287.47, 7,929.75 and 1,588.86 is: 2,382.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,287.47 : 7,929.75 = 1,588.86 : x
  2. Step 2: Convert to fraction form
    5,287.47/7,929.75 = 1,588.86/x
  3. Step 3: Cross multiply
    5,287.47x = 7,929.75 × 1,588.86
  4. Step 4: Simplify right side
    5,287.47x = 12,599,262.59
  5. Step 5: Solve for x
    x = 12,599,262.59/5,287.47
  6. Step 6: Final answer
    x = 2,382.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.