Home / 5,220.80-7,825.52-2,445.74

Finding the Fourth Proportional to 5,220.80, 7,825.52 and 2,445.74

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Solution

The fourth proportional to 5,220.80, 7,825.52 and 2,445.74 is: 3,665.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,220.80 : 7,825.52 = 2,445.74 : x
  2. Step 2: Convert to fraction form
    5,220.80/7,825.52 = 2,445.74/x
  3. Step 3: Cross multiply
    5,220.80x = 7,825.52 × 2,445.74
  4. Step 4: Simplify right side
    5,220.80x = 19,139,187.28
  5. Step 5: Solve for x
    x = 19,139,187.28/5,220.80
  6. Step 6: Final answer
    x = 3,665.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.