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Finding the Fourth Proportional to 1,032.76, 1,424.90 and 659.08

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Solution

The fourth proportional to 1,032.76, 1,424.90 and 659.08 is: 909.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,032.76 : 1,424.90 = 659.08 : x
  2. Step 2: Convert to fraction form
    1,032.76/1,424.90 = 659.08/x
  3. Step 3: Cross multiply
    1,032.76x = 1,424.90 × 659.08
  4. Step 4: Simplify right side
    1,032.76x = 939,123.09
  5. Step 5: Solve for x
    x = 939,123.09/1,032.76
  6. Step 6: Final answer
    x = 909.33

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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.