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Finding the Fourth Proportional to 4,583.97, 6,878.43 and 1,987.11

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Solution

The fourth proportional to 4,583.97, 6,878.43 and 1,987.11 is: 2,981.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,583.97 : 6,878.43 = 1,987.11 : x
  2. Step 2: Convert to fraction form
    4,583.97/6,878.43 = 1,987.11/x
  3. Step 3: Cross multiply
    4,583.97x = 6,878.43 × 1,987.11
  4. Step 4: Simplify right side
    4,583.97x = 13,668,197.04
  5. Step 5: Solve for x
    x = 13,668,197.04/4,583.97
  6. Step 6: Final answer
    x = 2,981.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.