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Finding the Fourth Proportional to 1,656.39, 2,484.33 and 545.82

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Solution

The fourth proportional to 1,656.39, 2,484.33 and 545.82 is: 818.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,656.39 : 2,484.33 = 545.82 : x
  2. Step 2: Convert to fraction form
    1,656.39/2,484.33 = 545.82/x
  3. Step 3: Cross multiply
    1,656.39x = 2,484.33 × 545.82
  4. Step 4: Simplify right side
    1,656.39x = 1,355,985.64
  5. Step 5: Solve for x
    x = 1,355,985.64/1,656.39
  6. Step 6: Final answer
    x = 818.64

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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.