Home / 6,642.47-9,166.28-3,658.23

Finding the Fourth Proportional to 6,642.47, 9,166.28 and 3,658.23

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Solution

The fourth proportional to 6,642.47, 9,166.28 and 3,658.23 is: 5,048.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,642.47 : 9,166.28 = 3,658.23 : x
  2. Step 2: Convert to fraction form
    6,642.47/9,166.28 = 3,658.23/x
  3. Step 3: Cross multiply
    6,642.47x = 9,166.28 × 3,658.23
  4. Step 4: Simplify right side
    6,642.47x = 33,532,360.48
  5. Step 5: Solve for x
    x = 33,532,360.48/6,642.47
  6. Step 6: Final answer
    x = 5,048.18

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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.