Home / 3,528.36-5,292.45-931.32

Finding the Fourth Proportional to 3,528.36, 5,292.45 and 931.32

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Solution

The fourth proportional to 3,528.36, 5,292.45 and 931.32 is: 1,396.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,528.36 : 5,292.45 = 931.32 : x
  2. Step 2: Convert to fraction form
    3,528.36/5,292.45 = 931.32/x
  3. Step 3: Cross multiply
    3,528.36x = 5,292.45 × 931.32
  4. Step 4: Simplify right side
    3,528.36x = 4,928,964.53
  5. Step 5: Solve for x
    x = 4,928,964.53/3,528.36
  6. Step 6: Final answer
    x = 1,396.96

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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.