Home / 2,767.60-4,145.80-1,724.40

Finding the Fourth Proportional to 2,767.60, 4,145.80 and 1,724.40

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Solution

The fourth proportional to 2,767.60, 4,145.80 and 1,724.40 is: 2,583.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,767.60 : 4,145.80 = 1,724.40 : x
  2. Step 2: Convert to fraction form
    2,767.60/4,145.80 = 1,724.40/x
  3. Step 3: Cross multiply
    2,767.60x = 4,145.80 × 1,724.40
  4. Step 4: Simplify right side
    2,767.60x = 7,149,017.52
  5. Step 5: Solve for x
    x = 7,149,017.52/2,767.60
  6. Step 6: Final answer
    x = 2,583.11

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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.