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Finding the Fourth Proportional to 5,553.81, 8,328.88 and 1,854.94

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Solution

The fourth proportional to 5,553.81, 8,328.88 and 1,854.94 is: 2,781.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,553.81 : 8,328.88 = 1,854.94 : x
  2. Step 2: Convert to fraction form
    5,553.81/8,328.88 = 1,854.94/x
  3. Step 3: Cross multiply
    5,553.81x = 8,328.88 × 1,854.94
  4. Step 4: Simplify right side
    5,553.81x = 15,449,572.67
  5. Step 5: Solve for x
    x = 15,449,572.67/5,553.81
  6. Step 6: Final answer
    x = 2,781.80

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1.5x scale

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.