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Finding the Fourth Proportional to 1,555.46, 2,333.10 and 581.48

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Solution

The fourth proportional to 1,555.46, 2,333.10 and 581.48 is: 872.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,555.46 : 2,333.10 = 581.48 : x
  2. Step 2: Convert to fraction form
    1,555.46/2,333.10 = 581.48/x
  3. Step 3: Cross multiply
    1,555.46x = 2,333.10 × 581.48
  4. Step 4: Simplify right side
    1,555.46x = 1,356,656.82
  5. Step 5: Solve for x
    x = 1,356,656.82/1,555.46
  6. Step 6: Final answer
    x = 872.19

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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.