Home / 3,074.60-4,243.11-1,730.30

Finding the Fourth Proportional to 3,074.60, 4,243.11 and 1,730.30

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Solution

The fourth proportional to 3,074.60, 4,243.11 and 1,730.30 is: 2,387.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,074.60 : 4,243.11 = 1,730.30 : x
  2. Step 2: Convert to fraction form
    3,074.60/4,243.11 = 1,730.30/x
  3. Step 3: Cross multiply
    3,074.60x = 4,243.11 × 1,730.30
  4. Step 4: Simplify right side
    3,074.60x = 7,341,853.23
  5. Step 5: Solve for x
    x = 7,341,853.23/3,074.60
  6. Step 6: Final answer
    x = 2,387.91

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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.