Home / 2,862.26-3,947.28-1,867.17

Finding the Fourth Proportional to 2,862.26, 3,947.28 and 1,867.17

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Solution

The fourth proportional to 2,862.26, 3,947.28 and 1,867.17 is: 2,574.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,862.26 : 3,947.28 = 1,867.17 : x
  2. Step 2: Convert to fraction form
    2,862.26/3,947.28 = 1,867.17/x
  3. Step 3: Cross multiply
    2,862.26x = 3,947.28 × 1,867.17
  4. Step 4: Simplify right side
    2,862.26x = 7,370,242.80
  5. Step 5: Solve for x
    x = 7,370,242.80/2,862.26
  6. Step 6: Final answer
    x = 2,574.98

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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.