Home / 3,528.11-5,292.06-931.05

Finding the Fourth Proportional to 3,528.11, 5,292.06 and 931.05

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Solution

The fourth proportional to 3,528.11, 5,292.06 and 931.05 is: 1,396.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,528.11 : 5,292.06 = 931.05 : x
  2. Step 2: Convert to fraction form
    3,528.11/5,292.06 = 931.05/x
  3. Step 3: Cross multiply
    3,528.11x = 5,292.06 × 931.05
  4. Step 4: Simplify right side
    3,528.11x = 4,927,172.46
  5. Step 5: Solve for x
    x = 4,927,172.46/3,528.11
  6. Step 6: Final answer
    x = 1,396.55

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Double scale
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Similar ratio
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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.