Home / 2,257.85-3,116.90-1,698.53

Finding the Fourth Proportional to 2,257.85, 3,116.90 and 1,698.53

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Solution

The fourth proportional to 2,257.85, 3,116.90 and 1,698.53 is: 2,344.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,257.85 : 3,116.90 = 1,698.53 : x
  2. Step 2: Convert to fraction form
    2,257.85/3,116.90 = 1,698.53/x
  3. Step 3: Cross multiply
    2,257.85x = 3,116.90 × 1,698.53
  4. Step 4: Simplify right side
    2,257.85x = 5,294,160.20
  5. Step 5: Solve for x
    x = 5,294,160.20/2,257.85
  6. Step 6: Final answer
    x = 2,344.78

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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.