Home / 5,485.90-7,569.78-3,247.42

Finding the Fourth Proportional to 5,485.90, 7,569.78 and 3,247.42

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Solution

The fourth proportional to 5,485.90, 7,569.78 and 3,247.42 is: 4,480.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,485.90 : 7,569.78 = 3,247.42 : x
  2. Step 2: Convert to fraction form
    5,485.90/7,569.78 = 3,247.42/x
  3. Step 3: Cross multiply
    5,485.90x = 7,569.78 × 3,247.42
  4. Step 4: Simplify right side
    5,485.90x = 24,582,254.97
  5. Step 5: Solve for x
    x = 24,582,254.97/5,485.90
  6. Step 6: Final answer
    x = 4,480.99

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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.