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Finding the Fourth Proportional to 1,588.28, 2,191.77 and 925.34

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Solution

The fourth proportional to 1,588.28, 2,191.77 and 925.34 is: 1,276.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,588.28 : 2,191.77 = 925.34 : x
  2. Step 2: Convert to fraction form
    1,588.28/2,191.77 = 925.34/x
  3. Step 3: Cross multiply
    1,588.28x = 2,191.77 × 925.34
  4. Step 4: Simplify right side
    1,588.28x = 2,028,121.49
  5. Step 5: Solve for x
    x = 2,028,121.49/1,588.28
  6. Step 6: Final answer
    x = 1,276.93

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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.