Home / 2,886.28-3,957.53-2,605.48

Finding the Fourth Proportional to 2,886.28, 3,957.53 and 2,605.48

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Solution

The fourth proportional to 2,886.28, 3,957.53 and 2,605.48 is: 3,572.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,886.28 : 3,957.53 = 2,605.48 : x
  2. Step 2: Convert to fraction form
    2,886.28/3,957.53 = 2,605.48/x
  3. Step 3: Cross multiply
    2,886.28x = 3,957.53 × 2,605.48
  4. Step 4: Simplify right side
    2,886.28x = 10,311,265.26
  5. Step 5: Solve for x
    x = 10,311,265.26/2,886.28
  6. Step 6: Final answer
    x = 3,572.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.