Home / 3,528.55-5,293.18-931.49

Finding the Fourth Proportional to 3,528.55, 5,293.18 and 931.49

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Solution

The fourth proportional to 3,528.55, 5,293.18 and 931.49 is: 1,397.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,528.55 : 5,293.18 = 931.49 : x
  2. Step 2: Convert to fraction form
    3,528.55/5,293.18 = 931.49/x
  3. Step 3: Cross multiply
    3,528.55x = 5,293.18 × 931.49
  4. Step 4: Simplify right side
    3,528.55x = 4,930,517.77
  5. Step 5: Solve for x
    x = 4,930,517.77/3,528.55
  6. Step 6: Final answer
    x = 1,397.32

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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.