Home / 2,384.87-3,294.28-1,987.83

Finding the Fourth Proportional to 2,384.87, 3,294.28 and 1,987.83

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Solution

The fourth proportional to 2,384.87, 3,294.28 and 1,987.83 is: 2,745.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,384.87 : 3,294.28 = 1,987.83 : x
  2. Step 2: Convert to fraction form
    2,384.87/3,294.28 = 1,987.83/x
  3. Step 3: Cross multiply
    2,384.87x = 3,294.28 × 1,987.83
  4. Step 4: Simplify right side
    2,384.87x = 6,548,490.11
  5. Step 5: Solve for x
    x = 6,548,490.11/2,384.87
  6. Step 6: Final answer
    x = 2,745.85

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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.