Home / 2,862.87-3,951.51-1,684.32

Finding the Fourth Proportional to 2,862.87, 3,951.51 and 1,684.32

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Solution

The fourth proportional to 2,862.87, 3,951.51 and 1,684.32 is: 2,324.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,862.87 : 3,951.51 = 1,684.32 : x
  2. Step 2: Convert to fraction form
    2,862.87/3,951.51 = 1,684.32/x
  3. Step 3: Cross multiply
    2,862.87x = 3,951.51 × 1,684.32
  4. Step 4: Simplify right side
    2,862.87x = 6,655,607.32
  5. Step 5: Solve for x
    x = 6,655,607.32/2,862.87
  6. Step 6: Final answer
    x = 2,324.80

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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.