Home / 2,045.17-2,821.35-1,257.85

Finding the Fourth Proportional to 2,045.17, 2,821.35 and 1,257.85

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Solution

The fourth proportional to 2,045.17, 2,821.35 and 1,257.85 is: 1,735.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,045.17 : 2,821.35 = 1,257.85 : x
  2. Step 2: Convert to fraction form
    2,045.17/2,821.35 = 1,257.85/x
  3. Step 3: Cross multiply
    2,045.17x = 2,821.35 × 1,257.85
  4. Step 4: Simplify right side
    2,045.17x = 3,548,835.10
  5. Step 5: Solve for x
    x = 3,548,835.10/2,045.17
  6. Step 6: Final answer
    x = 1,735.23

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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.