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Finding the Fourth Proportional to 2,471.76, 3,709 and 1,011.93

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Solution

The fourth proportional to 2,471.76, 3,709 and 1,011.93 is: 1,518.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,471.76 : 3,709 = 1,011.93 : x
  2. Step 2: Convert to fraction form
    2,471.76/3,709 = 1,011.93/x
  3. Step 3: Cross multiply
    2,471.76x = 3,709 × 1,011.93
  4. Step 4: Simplify right side
    2,471.76x = 3,753,248.37
  5. Step 5: Solve for x
    x = 3,753,248.37/2,471.76
  6. Step 6: Final answer
    x = 1,518.45

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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.