Home / 2,275.42-3,140.22-1,331.24

Finding the Fourth Proportional to 2,275.42, 3,140.22 and 1,331.24

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Solution

The fourth proportional to 2,275.42, 3,140.22 and 1,331.24 is: 1,837.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,275.42 : 3,140.22 = 1,331.24 : x
  2. Step 2: Convert to fraction form
    2,275.42/3,140.22 = 1,331.24/x
  3. Step 3: Cross multiply
    2,275.42x = 3,140.22 × 1,331.24
  4. Step 4: Simplify right side
    2,275.42x = 4,180,386.47
  5. Step 5: Solve for x
    x = 4,180,386.47/2,275.42
  6. Step 6: Final answer
    x = 1,837.19

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