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Finding the Fourth Proportional to 1,248.42, 1,725.93 and 937.38

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Solution

The fourth proportional to 1,248.42, 1,725.93 and 937.38 is: 1,295.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,248.42 : 1,725.93 = 937.38 : x
  2. Step 2: Convert to fraction form
    1,248.42/1,725.93 = 937.38/x
  3. Step 3: Cross multiply
    1,248.42x = 1,725.93 × 937.38
  4. Step 4: Simplify right side
    1,248.42x = 1,617,852.26
  5. Step 5: Solve for x
    x = 1,617,852.26/1,248.42
  6. Step 6: Final answer
    x = 1,295.92

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1.5x scale

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.