Home / 5,429.25-8,143.88-1,533.76

Finding the Fourth Proportional to 5,429.25, 8,143.88 and 1,533.76

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Solution

The fourth proportional to 5,429.25, 8,143.88 and 1,533.76 is: 2,300.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,429.25 : 8,143.88 = 1,533.76 : x
  2. Step 2: Convert to fraction form
    5,429.25/8,143.88 = 1,533.76/x
  3. Step 3: Cross multiply
    5,429.25x = 8,143.88 × 1,533.76
  4. Step 4: Simplify right side
    5,429.25x = 12,490,729.36
  5. Step 5: Solve for x
    x = 12,490,729.36/5,429.25
  6. Step 6: Final answer
    x = 2,300.64

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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.