Home / 3,528.12-5,292.18-931.26

Finding the Fourth Proportional to 3,528.12, 5,292.18 and 931.26

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Solution

The fourth proportional to 3,528.12, 5,292.18 and 931.26 is: 1,396.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,528.12 : 5,292.18 = 931.26 : x
  2. Step 2: Convert to fraction form
    3,528.12/5,292.18 = 931.26/x
  3. Step 3: Cross multiply
    3,528.12x = 5,292.18 × 931.26
  4. Step 4: Simplify right side
    3,528.12x = 4,928,395.55
  5. Step 5: Solve for x
    x = 4,928,395.55/3,528.12
  6. Step 6: Final answer
    x = 1,396.89

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Half scale
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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.