Home / 2,225.10-3,337.38-764.40

Finding the Fourth Proportional to 2,225.10, 3,337.38 and 764.40

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Solution

The fourth proportional to 2,225.10, 3,337.38 and 764.40 is: 1,146.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,225.10 : 3,337.38 = 764.40 : x
  2. Step 2: Convert to fraction form
    2,225.10/3,337.38 = 764.40/x
  3. Step 3: Cross multiply
    2,225.10x = 3,337.38 × 764.40
  4. Step 4: Simplify right side
    2,225.10x = 2,551,093.27
  5. Step 5: Solve for x
    x = 2,551,093.27/2,225.10
  6. Step 6: Final answer
    x = 1,146.51

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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.