Home / 6,213.12-8,572.64-4,200.28

Finding the Fourth Proportional to 6,213.12, 8,572.64 and 4,200.28

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Solution

The fourth proportional to 6,213.12, 8,572.64 and 4,200.28 is: 5,795.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,213.12 : 8,572.64 = 4,200.28 : x
  2. Step 2: Convert to fraction form
    6,213.12/8,572.64 = 4,200.28/x
  3. Step 3: Cross multiply
    6,213.12x = 8,572.64 × 4,200.28
  4. Step 4: Simplify right side
    6,213.12x = 36,007,488.34
  5. Step 5: Solve for x
    x = 36,007,488.34/6,213.12
  6. Step 6: Final answer
    x = 5,795.40

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.