Home / 2,765.46-4,148.61-917.04

Finding the Fourth Proportional to 2,765.46, 4,148.61 and 917.04

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Solution

The fourth proportional to 2,765.46, 4,148.61 and 917.04 is: 1,375.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,765.46 : 4,148.61 = 917.04 : x
  2. Step 2: Convert to fraction form
    2,765.46/4,148.61 = 917.04/x
  3. Step 3: Cross multiply
    2,765.46x = 4,148.61 × 917.04
  4. Step 4: Simplify right side
    2,765.46x = 3,804,441.31
  5. Step 5: Solve for x
    x = 3,804,441.31/2,765.46
  6. Step 6: Final answer
    x = 1,375.70

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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.