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Finding the Fourth Proportional to 2,221.84, 3,330.95 and 924.28

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Solution

The fourth proportional to 2,221.84, 3,330.95 and 924.28 is: 1,385.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,221.84 : 3,330.95 = 924.28 : x
  2. Step 2: Convert to fraction form
    2,221.84/3,330.95 = 924.28/x
  3. Step 3: Cross multiply
    2,221.84x = 3,330.95 × 924.28
  4. Step 4: Simplify right side
    2,221.84x = 3,078,713.81
  5. Step 5: Solve for x
    x = 3,078,713.81/2,221.84
  6. Step 6: Final answer
    x = 1,385.66

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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.