Home / 2,320.74-3,475.98-1,331.28

Finding the Fourth Proportional to 2,320.74, 3,475.98 and 1,331.28

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Solution

The fourth proportional to 2,320.74, 3,475.98 and 1,331.28 is: 1,993.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,320.74 : 3,475.98 = 1,331.28 : x
  2. Step 2: Convert to fraction form
    2,320.74/3,475.98 = 1,331.28/x
  3. Step 3: Cross multiply
    2,320.74x = 3,475.98 × 1,331.28
  4. Step 4: Simplify right side
    2,320.74x = 4,627,502.65
  5. Step 5: Solve for x
    x = 4,627,502.65/2,320.74
  6. Step 6: Final answer
    x = 1,993.98

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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.