Home / 2,857.10-4,287.26-1,126.94

Finding the Fourth Proportional to 2,857.10, 4,287.26 and 1,126.94

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Solution

The fourth proportional to 2,857.10, 4,287.26 and 1,126.94 is: 1,691.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,857.10 : 4,287.26 = 1,126.94 : x
  2. Step 2: Convert to fraction form
    2,857.10/4,287.26 = 1,126.94/x
  3. Step 3: Cross multiply
    2,857.10x = 4,287.26 × 1,126.94
  4. Step 4: Simplify right side
    2,857.10x = 4,831,466.17
  5. Step 5: Solve for x
    x = 4,831,466.17/2,857.10
  6. Step 6: Final answer
    x = 1,691.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.