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Finding the Fourth Proportional to 4,877.73, 7,318.31 and 1,590.80

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Solution

The fourth proportional to 4,877.73, 7,318.31 and 1,590.80 is: 2,386.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,877.73 : 7,318.31 = 1,590.80 : x
  2. Step 2: Convert to fraction form
    4,877.73/7,318.31 = 1,590.80/x
  3. Step 3: Cross multiply
    4,877.73x = 7,318.31 × 1,590.80
  4. Step 4: Simplify right side
    4,877.73x = 11,641,923.00
  5. Step 5: Solve for x
    x = 11,641,923.00/4,877.73
  6. Step 6: Final answer
    x = 2,386.75

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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.