Home / 1,681.56-2,523.86-1,543.66

Finding the Fourth Proportional to 1,681.56, 2,523.86 and 1,543.66

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Solution

The fourth proportional to 1,681.56, 2,523.86 and 1,543.66 is: 2,316.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,681.56 : 2,523.86 = 1,543.66 : x
  2. Step 2: Convert to fraction form
    1,681.56/2,523.86 = 1,543.66/x
  3. Step 3: Cross multiply
    1,681.56x = 2,523.86 × 1,543.66
  4. Step 4: Simplify right side
    1,681.56x = 3,895,973.49
  5. Step 5: Solve for x
    x = 3,895,973.49/1,681.56
  6. Step 6: Final answer
    x = 2,316.88

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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.