Home / 2,077.40-2,865.54-1,517.20

Finding the Fourth Proportional to 2,077.40, 2,865.54 and 1,517.20

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Solution

The fourth proportional to 2,077.40, 2,865.54 and 1,517.20 is: 2,092.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,077.40 : 2,865.54 = 1,517.20 : x
  2. Step 2: Convert to fraction form
    2,077.40/2,865.54 = 1,517.20/x
  3. Step 3: Cross multiply
    2,077.40x = 2,865.54 × 1,517.20
  4. Step 4: Simplify right side
    2,077.40x = 4,347,597.29
  5. Step 5: Solve for x
    x = 4,347,597.29/2,077.40
  6. Step 6: Final answer
    x = 2,092.81

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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.