Home / 3,620.14-5,430.33-1,248.20

Finding the Fourth Proportional to 3,620.14, 5,430.33 and 1,248.20

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Solution

The fourth proportional to 3,620.14, 5,430.33 and 1,248.20 is: 1,872.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,620.14 : 5,430.33 = 1,248.20 : x
  2. Step 2: Convert to fraction form
    3,620.14/5,430.33 = 1,248.20/x
  3. Step 3: Cross multiply
    3,620.14x = 5,430.33 × 1,248.20
  4. Step 4: Simplify right side
    3,620.14x = 6,778,151.48
  5. Step 5: Solve for x
    x = 6,778,151.48/3,620.14
  6. Step 6: Final answer
    x = 1,872.35

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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.