Home / 7,528.71-10,388.58-4,170.69

Finding the Fourth Proportional to 7,528.71, 10,388.58 and 4,170.69

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Solution

The fourth proportional to 7,528.71, 10,388.58 and 4,170.69 is: 5,754.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,528.71 : 10,388.58 = 4,170.69 : x
  2. Step 2: Convert to fraction form
    7,528.71/10,388.58 = 4,170.69/x
  3. Step 3: Cross multiply
    7,528.71x = 10,388.58 × 4,170.69
  4. Step 4: Simplify right side
    7,528.71x = 43,327,546.72
  5. Step 5: Solve for x
    x = 43,327,546.72/7,528.71
  6. Step 6: Final answer
    x = 5,754.98

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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.