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Finding the Fourth Proportional to 1,141.30, 1,574.97 and 675.70

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Solution

The fourth proportional to 1,141.30, 1,574.97 and 675.70 is: 932.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,141.30 : 1,574.97 = 675.70 : x
  2. Step 2: Convert to fraction form
    1,141.30/1,574.97 = 675.70/x
  3. Step 3: Cross multiply
    1,141.30x = 1,574.97 × 675.70
  4. Step 4: Simplify right side
    1,141.30x = 1,064,207.23
  5. Step 5: Solve for x
    x = 1,064,207.23/1,141.30
  6. Step 6: Final answer
    x = 932.45

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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.