Home / 2,974.47-4,105.18-2,265.32

Finding the Fourth Proportional to 2,974.47, 4,105.18 and 2,265.32

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Solution

The fourth proportional to 2,974.47, 4,105.18 and 2,265.32 is: 3,126.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,974.47 : 4,105.18 = 2,265.32 : x
  2. Step 2: Convert to fraction form
    2,974.47/4,105.18 = 2,265.32/x
  3. Step 3: Cross multiply
    2,974.47x = 4,105.18 × 2,265.32
  4. Step 4: Simplify right side
    2,974.47x = 9,299,536.36
  5. Step 5: Solve for x
    x = 9,299,536.36/2,974.47
  6. Step 6: Final answer
    x = 3,126.45

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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.