Home / 4,987.80-6,881.23-2,862.56

Finding the Fourth Proportional to 4,987.80, 6,881.23 and 2,862.56

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Solution

The fourth proportional to 4,987.80, 6,881.23 and 2,862.56 is: 3,949.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,987.80 : 6,881.23 = 2,862.56 : x
  2. Step 2: Convert to fraction form
    4,987.80/6,881.23 = 2,862.56/x
  3. Step 3: Cross multiply
    4,987.80x = 6,881.23 × 2,862.56
  4. Step 4: Simplify right side
    4,987.80x = 19,697,928.73
  5. Step 5: Solve for x
    x = 19,697,928.73/4,987.80
  6. Step 6: Final answer
    x = 3,949.22

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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.