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Finding the Fourth Proportional to 2,471.64, 3,411.36 and 1,881.12

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Solution

The fourth proportional to 2,471.64, 3,411.36 and 1,881.12 is: 2,596.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,471.64 : 3,411.36 = 1,881.12 : x
  2. Step 2: Convert to fraction form
    2,471.64/3,411.36 = 1,881.12/x
  3. Step 3: Cross multiply
    2,471.64x = 3,411.36 × 1,881.12
  4. Step 4: Simplify right side
    2,471.64x = 6,417,177.52
  5. Step 5: Solve for x
    x = 6,417,177.52/2,471.64
  6. Step 6: Final answer
    x = 2,596.32

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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.