Home / 3,853.22-5,315.55-2,280.56

Finding the Fourth Proportional to 3,853.22, 5,315.55 and 2,280.56

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Solution

The fourth proportional to 3,853.22, 5,315.55 and 2,280.56 is: 3,146.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,853.22 : 5,315.55 = 2,280.56 : x
  2. Step 2: Convert to fraction form
    3,853.22/5,315.55 = 2,280.56/x
  3. Step 3: Cross multiply
    3,853.22x = 5,315.55 × 2,280.56
  4. Step 4: Simplify right side
    3,853.22x = 12,122,430.71
  5. Step 5: Solve for x
    x = 12,122,430.71/3,853.22
  6. Step 6: Final answer
    x = 3,146.05

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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.