Home / 2,580.46-3,870.32-731.73

Finding the Fourth Proportional to 2,580.46, 3,870.32 and 731.73

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Solution

The fourth proportional to 2,580.46, 3,870.32 and 731.73 is: 1,097.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,580.46 : 3,870.32 = 731.73 : x
  2. Step 2: Convert to fraction form
    2,580.46/3,870.32 = 731.73/x
  3. Step 3: Cross multiply
    2,580.46x = 3,870.32 × 731.73
  4. Step 4: Simplify right side
    2,580.46x = 2,832,040.11
  5. Step 5: Solve for x
    x = 2,832,040.11/2,580.46
  6. Step 6: Final answer
    x = 1,097.50

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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.