Home / 2,865.20-4,296.56-1,015.70

Finding the Fourth Proportional to 2,865.20, 4,296.56 and 1,015.70

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Solution

The fourth proportional to 2,865.20, 4,296.56 and 1,015.70 is: 1,523.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,865.20 : 4,296.56 = 1,015.70 : x
  2. Step 2: Convert to fraction form
    2,865.20/4,296.56 = 1,015.70/x
  3. Step 3: Cross multiply
    2,865.20x = 4,296.56 × 1,015.70
  4. Step 4: Simplify right side
    2,865.20x = 4,364,021.65
  5. Step 5: Solve for x
    x = 4,364,021.65/2,865.20
  6. Step 6: Final answer
    x = 1,523.11

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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.