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Finding the Fourth Proportional to 1,053.61, 1,453.87 and 581.48

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Solution

The fourth proportional to 1,053.61, 1,453.87 and 581.48 is: 802.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,053.61 : 1,453.87 = 581.48 : x
  2. Step 2: Convert to fraction form
    1,053.61/1,453.87 = 581.48/x
  3. Step 3: Cross multiply
    1,053.61x = 1,453.87 × 581.48
  4. Step 4: Simplify right side
    1,053.61x = 845,391.97
  5. Step 5: Solve for x
    x = 845,391.97/1,053.61
  6. Step 6: Final answer
    x = 802.38

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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.