Home / 2,329.32-3,214.20-1,281.12

Finding the Fourth Proportional to 2,329.32, 3,214.20 and 1,281.12

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Solution

The fourth proportional to 2,329.32, 3,214.20 and 1,281.12 is: 1,767.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,329.32 : 3,214.20 = 1,281.12 : x
  2. Step 2: Convert to fraction form
    2,329.32/3,214.20 = 1,281.12/x
  3. Step 3: Cross multiply
    2,329.32x = 3,214.20 × 1,281.12
  4. Step 4: Simplify right side
    2,329.32x = 4,117,775.90
  5. Step 5: Solve for x
    x = 4,117,775.90/2,329.32
  6. Step 6: Final answer
    x = 1,767.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.