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Finding the Fourth Proportional to 1,555.68, 2,333.84 and 1,068.96

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Solution

The fourth proportional to 1,555.68, 2,333.84 and 1,068.96 is: 1,603.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,555.68 : 2,333.84 = 1,068.96 : x
  2. Step 2: Convert to fraction form
    1,555.68/2,333.84 = 1,068.96/x
  3. Step 3: Cross multiply
    1,555.68x = 2,333.84 × 1,068.96
  4. Step 4: Simplify right side
    1,555.68x = 2,494,781.61
  5. Step 5: Solve for x
    x = 2,494,781.61/1,555.68
  6. Step 6: Final answer
    x = 1,603.66

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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.