Home / 2,329.56-3,214.78-1,281.56

Finding the Fourth Proportional to 2,329.56, 3,214.78 and 1,281.56

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Solution

The fourth proportional to 2,329.56, 3,214.78 and 1,281.56 is: 1,768.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,329.56 : 3,214.78 = 1,281.56 : x
  2. Step 2: Convert to fraction form
    2,329.56/3,214.78 = 1,281.56/x
  3. Step 3: Cross multiply
    2,329.56x = 3,214.78 × 1,281.56
  4. Step 4: Simplify right side
    2,329.56x = 4,119,933.46
  5. Step 5: Solve for x
    x = 4,119,933.46/2,329.56
  6. Step 6: Final answer
    x = 1,768.55

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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.