Home / 3,113.28-4,296.14-1,787.42

Finding the Fourth Proportional to 3,113.28, 4,296.14 and 1,787.42

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Solution

The fourth proportional to 3,113.28, 4,296.14 and 1,787.42 is: 2,466.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,113.28 : 4,296.14 = 1,787.42 : x
  2. Step 2: Convert to fraction form
    3,113.28/4,296.14 = 1,787.42/x
  3. Step 3: Cross multiply
    3,113.28x = 4,296.14 × 1,787.42
  4. Step 4: Simplify right side
    3,113.28x = 7,679,006.56
  5. Step 5: Solve for x
    x = 7,679,006.56/3,113.28
  6. Step 6: Final answer
    x = 2,466.53

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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.