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Finding the Fourth Proportional to 2,221.67, 3,332.52 and 578.22

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Solution

The fourth proportional to 2,221.67, 3,332.52 and 578.22 is: 867.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,221.67 : 3,332.52 = 578.22 : x
  2. Step 2: Convert to fraction form
    2,221.67/3,332.52 = 578.22/x
  3. Step 3: Cross multiply
    2,221.67x = 3,332.52 × 578.22
  4. Step 4: Simplify right side
    2,221.67x = 1,926,929.71
  5. Step 5: Solve for x
    x = 1,926,929.71/2,221.67
  6. Step 6: Final answer
    x = 867.34

Related Problems

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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.