Home / 7,025.78-9,695.70-3,881.90

Finding the Fourth Proportional to 7,025.78, 9,695.70 and 3,881.90

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Solution

The fourth proportional to 7,025.78, 9,695.70 and 3,881.90 is: 5,357.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,025.78 : 9,695.70 = 3,881.90 : x
  2. Step 2: Convert to fraction form
    7,025.78/9,695.70 = 3,881.90/x
  3. Step 3: Cross multiply
    7,025.78x = 9,695.70 × 3,881.90
  4. Step 4: Simplify right side
    7,025.78x = 37,637,737.83
  5. Step 5: Solve for x
    x = 37,637,737.83/7,025.78
  6. Step 6: Final answer
    x = 5,357.09

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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.