Home / 7,025.40-9,695.58-4,042.20

Finding the Fourth Proportional to 7,025.40, 9,695.58 and 4,042.20

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Solution

The fourth proportional to 7,025.40, 9,695.58 and 4,042.20 is: 5,578.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,025.40 : 9,695.58 = 4,042.20 : x
  2. Step 2: Convert to fraction form
    7,025.40/9,695.58 = 4,042.20/x
  3. Step 3: Cross multiply
    7,025.40x = 9,695.58 × 4,042.20
  4. Step 4: Simplify right side
    7,025.40x = 39,191,473.48
  5. Step 5: Solve for x
    x = 39,191,473.48/7,025.40
  6. Step 6: Final answer
    x = 5,578.54

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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.