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Finding the Fourth Proportional to 737.58, 1,017.63 and 667.42

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Solution

The fourth proportional to 737.58, 1,017.63 and 667.42 is: 920.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    737.58 : 1,017.63 = 667.42 : x
  2. Step 2: Convert to fraction form
    737.58/1,017.63 = 667.42/x
  3. Step 3: Cross multiply
    737.58x = 1,017.63 × 667.42
  4. Step 4: Simplify right side
    737.58x = 679,184.07
  5. Step 5: Solve for x
    x = 679,184.07/737.58
  6. Step 6: Final answer
    x = 920.82

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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.