Home / 2,681.10-3,699.68-1,562.76

Finding the Fourth Proportional to 2,681.10, 3,699.68 and 1,562.76

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Solution

The fourth proportional to 2,681.10, 3,699.68 and 1,562.76 is: 2,156.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,681.10 : 3,699.68 = 1,562.76 : x
  2. Step 2: Convert to fraction form
    2,681.10/3,699.68 = 1,562.76/x
  3. Step 3: Cross multiply
    2,681.10x = 3,699.68 × 1,562.76
  4. Step 4: Simplify right side
    2,681.10x = 5,781,704.10
  5. Step 5: Solve for x
    x = 5,781,704.10/2,681.10
  6. Step 6: Final answer
    x = 2,156.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.