Home / 7,649.28-10,555.56-4,462.20

Finding the Fourth Proportional to 7,649.28, 10,555.56 and 4,462.20

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Solution

The fourth proportional to 7,649.28, 10,555.56 and 4,462.20 is: 6,157.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,649.28 : 10,555.56 = 4,462.20 : x
  2. Step 2: Convert to fraction form
    7,649.28/10,555.56 = 4,462.20/x
  3. Step 3: Cross multiply
    7,649.28x = 10,555.56 × 4,462.20
  4. Step 4: Simplify right side
    7,649.28x = 47,101,019.83
  5. Step 5: Solve for x
    x = 47,101,019.83/7,649.28
  6. Step 6: Final answer
    x = 6,157.58

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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.