Home / 1,681.17-2,520.68-1,333.28

Finding the Fourth Proportional to 1,681.17, 2,520.68 and 1,333.28

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Solution

The fourth proportional to 1,681.17, 2,520.68 and 1,333.28 is: 1,999.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,681.17 : 2,520.68 = 1,333.28 : x
  2. Step 2: Convert to fraction form
    1,681.17/2,520.68 = 1,333.28/x
  3. Step 3: Cross multiply
    1,681.17x = 2,520.68 × 1,333.28
  4. Step 4: Simplify right side
    1,681.17x = 3,360,752.96
  5. Step 5: Solve for x
    x = 3,360,752.96/1,681.17
  6. Step 6: Final answer
    x = 1,999.06

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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.