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Finding the Fourth Proportional to 1,053.74, 1,454.46 and 953.54

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Solution

The fourth proportional to 1,053.74, 1,454.46 and 953.54 is: 1,316.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,053.74 : 1,454.46 = 953.54 : x
  2. Step 2: Convert to fraction form
    1,053.74/1,454.46 = 953.54/x
  3. Step 3: Cross multiply
    1,053.74x = 1,454.46 × 953.54
  4. Step 4: Simplify right side
    1,053.74x = 1,386,885.79
  5. Step 5: Solve for x
    x = 1,386,885.79/1,053.74
  6. Step 6: Final answer
    x = 1,316.16

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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.