Home / 5,715.60-8,573.40-2,430.24

Finding the Fourth Proportional to 5,715.60, 8,573.40 and 2,430.24

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Solution

The fourth proportional to 5,715.60, 8,573.40 and 2,430.24 is: 3,645.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,715.60 : 8,573.40 = 2,430.24 : x
  2. Step 2: Convert to fraction form
    5,715.60/8,573.40 = 2,430.24/x
  3. Step 3: Cross multiply
    5,715.60x = 8,573.40 × 2,430.24
  4. Step 4: Simplify right side
    5,715.60x = 20,835,419.62
  5. Step 5: Solve for x
    x = 20,835,419.62/5,715.60
  6. Step 6: Final answer
    x = 3,645.36

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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.