Home / 3,182.40-4,390.56-2,394.72

Finding the Fourth Proportional to 3,182.40, 4,390.56 and 2,394.72

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Solution

The fourth proportional to 3,182.40, 4,390.56 and 2,394.72 is: 3,303.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,182.40 : 4,390.56 = 2,394.72 : x
  2. Step 2: Convert to fraction form
    3,182.40/4,390.56 = 2,394.72/x
  3. Step 3: Cross multiply
    3,182.40x = 4,390.56 × 2,394.72
  4. Step 4: Simplify right side
    3,182.40x = 10,514,161.84
  5. Step 5: Solve for x
    x = 10,514,161.84/3,182.40
  6. Step 6: Final answer
    x = 3,303.85

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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.