Home / 2,397.28-3,578.60-1,905.88

Finding the Fourth Proportional to 2,397.28, 3,578.60 and 1,905.88

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Solution

The fourth proportional to 2,397.28, 3,578.60 and 1,905.88 is: 2,845.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,397.28 : 3,578.60 = 1,905.88 : x
  2. Step 2: Convert to fraction form
    2,397.28/3,578.60 = 1,905.88/x
  3. Step 3: Cross multiply
    2,397.28x = 3,578.60 × 1,905.88
  4. Step 4: Simplify right side
    2,397.28x = 6,820,382.17
  5. Step 5: Solve for x
    x = 6,820,382.17/2,397.28
  6. Step 6: Final answer
    x = 2,845.05

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.