Home / 2,657.11-3,666.93-1,538.10

Finding the Fourth Proportional to 2,657.11, 3,666.93 and 1,538.10

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Solution

The fourth proportional to 2,657.11, 3,666.93 and 1,538.10 is: 2,122.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,657.11 : 3,666.93 = 1,538.10 : x
  2. Step 2: Convert to fraction form
    2,657.11/3,666.93 = 1,538.10/x
  3. Step 3: Cross multiply
    2,657.11x = 3,666.93 × 1,538.10
  4. Step 4: Simplify right side
    2,657.11x = 5,640,105.03
  5. Step 5: Solve for x
    x = 5,640,105.03/2,657.11
  6. Step 6: Final answer
    x = 2,122.65

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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.