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Finding the Fourth Proportional to 1,334.40, 2,001.36 and 468.72

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Solution

The fourth proportional to 1,334.40, 2,001.36 and 468.72 is: 703.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,334.40 : 2,001.36 = 468.72 : x
  2. Step 2: Convert to fraction form
    1,334.40/2,001.36 = 468.72/x
  3. Step 3: Cross multiply
    1,334.40x = 2,001.36 × 468.72
  4. Step 4: Simplify right side
    1,334.40x = 938,077.46
  5. Step 5: Solve for x
    x = 938,077.46/1,334.40
  6. Step 6: Final answer
    x = 703.00

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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.