Home / 1,647.72-2,471.58-1,531.08

Finding the Fourth Proportional to 1,647.72, 2,471.58 and 1,531.08

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Solution

The fourth proportional to 1,647.72, 2,471.58 and 1,531.08 is: 2,296.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,647.72 : 2,471.58 = 1,531.08 : x
  2. Step 2: Convert to fraction form
    1,647.72/2,471.58 = 1,531.08/x
  3. Step 3: Cross multiply
    1,647.72x = 2,471.58 × 1,531.08
  4. Step 4: Simplify right side
    1,647.72x = 3,784,186.71
  5. Step 5: Solve for x
    x = 3,784,186.71/1,647.72
  6. Step 6: Final answer
    x = 2,296.62

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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.