Home / 7,931.86-11,898.38-2,384.76

Finding the Fourth Proportional to 7,931.86, 11,898.38 and 2,384.76

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Solution

The fourth proportional to 7,931.86, 11,898.38 and 2,384.76 is: 3,577.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,931.86 : 11,898.38 = 2,384.76 : x
  2. Step 2: Convert to fraction form
    7,931.86/11,898.38 = 2,384.76/x
  3. Step 3: Cross multiply
    7,931.86x = 11,898.38 × 2,384.76
  4. Step 4: Simplify right side
    7,931.86x = 28,374,780.69
  5. Step 5: Solve for x
    x = 28,374,780.69/7,931.86
  6. Step 6: Final answer
    x = 3,577.32

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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.