Home / 2,274.57-3,138.90-1,576.35

Finding the Fourth Proportional to 2,274.57, 3,138.90 and 1,576.35

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Solution

The fourth proportional to 2,274.57, 3,138.90 and 1,576.35 is: 2,175.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,274.57 : 3,138.90 = 1,576.35 : x
  2. Step 2: Convert to fraction form
    2,274.57/3,138.90 = 1,576.35/x
  3. Step 3: Cross multiply
    2,274.57x = 3,138.90 × 1,576.35
  4. Step 4: Simplify right side
    2,274.57x = 4,948,005.02
  5. Step 5: Solve for x
    x = 4,948,005.02/2,274.57
  6. Step 6: Final answer
    x = 2,175.36

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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.