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Finding the Fourth Proportional to 1,554.61, 2,330.29 and 580.32

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Solution

The fourth proportional to 1,554.61, 2,330.29 and 580.32 is: 869.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,554.61 : 2,330.29 = 580.32 : x
  2. Step 2: Convert to fraction form
    1,554.61/2,330.29 = 580.32/x
  3. Step 3: Cross multiply
    1,554.61x = 2,330.29 × 580.32
  4. Step 4: Simplify right side
    1,554.61x = 1,352,313.89
  5. Step 5: Solve for x
    x = 1,352,313.89/1,554.61
  6. Step 6: Final answer
    x = 869.87

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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.