Home / 3,724.40-5,139.66-2,068.40

Finding the Fourth Proportional to 3,724.40, 5,139.66 and 2,068.40

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Solution

The fourth proportional to 3,724.40, 5,139.66 and 2,068.40 is: 2,854.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,724.40 : 5,139.66 = 2,068.40 : x
  2. Step 2: Convert to fraction form
    3,724.40/5,139.66 = 2,068.40/x
  3. Step 3: Cross multiply
    3,724.40x = 5,139.66 × 2,068.40
  4. Step 4: Simplify right side
    3,724.40x = 10,630,872.74
  5. Step 5: Solve for x
    x = 10,630,872.74/3,724.40
  6. Step 6: Final answer
    x = 2,854.39

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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.