Home / 7,059.20-10,588.80-5,590.40

Finding the Fourth Proportional to 7,059.20, 10,588.80 and 5,590.40

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Solution

The fourth proportional to 7,059.20, 10,588.80 and 5,590.40 is: 8,385.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,059.20 : 10,588.80 = 5,590.40 : x
  2. Step 2: Convert to fraction form
    7,059.20/10,588.80 = 5,590.40/x
  3. Step 3: Cross multiply
    7,059.20x = 10,588.80 × 5,590.40
  4. Step 4: Simplify right side
    7,059.20x = 59,195,627.52
  5. Step 5: Solve for x
    x = 59,195,627.52/7,059.20
  6. Step 6: Final answer
    x = 8,385.60

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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.