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Finding the Fourth Proportional to 1,655.35, 2,484.84 and 1,398.53

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Solution

The fourth proportional to 1,655.35, 2,484.84 and 1,398.53 is: 2,099.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,655.35 : 2,484.84 = 1,398.53 : x
  2. Step 2: Convert to fraction form
    1,655.35/2,484.84 = 1,398.53/x
  3. Step 3: Cross multiply
    1,655.35x = 2,484.84 × 1,398.53
  4. Step 4: Simplify right side
    1,655.35x = 3,475,134.74
  5. Step 5: Solve for x
    x = 3,475,134.74/1,655.35
  6. Step 6: Final answer
    x = 2,099.34

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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.