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Finding the Fourth Proportional to 1,711.32, 2,361.84 and 1,048.20

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Solution

The fourth proportional to 1,711.32, 2,361.84 and 1,048.20 is: 1,446.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,711.32 : 2,361.84 = 1,048.20 : x
  2. Step 2: Convert to fraction form
    1,711.32/2,361.84 = 1,048.20/x
  3. Step 3: Cross multiply
    1,711.32x = 2,361.84 × 1,048.20
  4. Step 4: Simplify right side
    1,711.32x = 2,475,680.69
  5. Step 5: Solve for x
    x = 2,475,680.69/1,711.32
  6. Step 6: Final answer
    x = 1,446.65

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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.