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Finding the Fourth Proportional to 2,590.76, 3,575.32 and 1,471.50

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Solution

The fourth proportional to 2,590.76, 3,575.32 and 1,471.50 is: 2,030.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,590.76 : 3,575.32 = 1,471.50 : x
  2. Step 2: Convert to fraction form
    2,590.76/3,575.32 = 1,471.50/x
  3. Step 3: Cross multiply
    2,590.76x = 3,575.32 × 1,471.50
  4. Step 4: Simplify right side
    2,590.76x = 5,261,083.38
  5. Step 5: Solve for x
    x = 5,261,083.38/2,590.76
  6. Step 6: Final answer
    x = 2,030.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.