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Finding the Fourth Proportional to 3,116.32, 4,674.41 and 925.07

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Solution

The fourth proportional to 3,116.32, 4,674.41 and 925.07 is: 1,387.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,116.32 : 4,674.41 = 925.07 : x
  2. Step 2: Convert to fraction form
    3,116.32/4,674.41 = 925.07/x
  3. Step 3: Cross multiply
    3,116.32x = 4,674.41 × 925.07
  4. Step 4: Simplify right side
    3,116.32x = 4,324,158.22
  5. Step 5: Solve for x
    x = 4,324,158.22/3,116.32
  6. Step 6: Final answer
    x = 1,387.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.