Home / 2,320.24-3,480.90-760.32

Finding the Fourth Proportional to 2,320.24, 3,480.90 and 760.32

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Solution

The fourth proportional to 2,320.24, 3,480.90 and 760.32 is: 1,140.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,320.24 : 3,480.90 = 760.32 : x
  2. Step 2: Convert to fraction form
    2,320.24/3,480.90 = 760.32/x
  3. Step 3: Cross multiply
    2,320.24x = 3,480.90 × 760.32
  4. Step 4: Simplify right side
    2,320.24x = 2,646,597.89
  5. Step 5: Solve for x
    x = 2,646,597.89/2,320.24
  6. Step 6: Final answer
    x = 1,140.66

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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.