Home / 2,697.13-3,721.02-1,577.71

Finding the Fourth Proportional to 2,697.13, 3,721.02 and 1,577.71

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Solution

The fourth proportional to 2,697.13, 3,721.02 and 1,577.71 is: 2,176.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,697.13 : 3,721.02 = 1,577.71 : x
  2. Step 2: Convert to fraction form
    2,697.13/3,721.02 = 1,577.71/x
  3. Step 3: Cross multiply
    2,697.13x = 3,721.02 × 1,577.71
  4. Step 4: Simplify right side
    2,697.13x = 5,870,671.86
  5. Step 5: Solve for x
    x = 5,870,671.86/2,697.13
  6. Step 6: Final answer
    x = 2,176.64

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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.