Home / 2,724.18-3,754.80-2,085.90

Finding the Fourth Proportional to 2,724.18, 3,754.80 and 2,085.90

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Solution

The fourth proportional to 2,724.18, 3,754.80 and 2,085.90 is: 2,875.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,724.18 : 3,754.80 = 2,085.90 : x
  2. Step 2: Convert to fraction form
    2,724.18/3,754.80 = 2,085.90/x
  3. Step 3: Cross multiply
    2,724.18x = 3,754.80 × 2,085.90
  4. Step 4: Simplify right side
    2,724.18x = 7,832,137.32
  5. Step 5: Solve for x
    x = 7,832,137.32/2,724.18
  6. Step 6: Final answer
    x = 2,875.04

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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.