Home / 3,826.86-5,280.98-2,148.24

Finding the Fourth Proportional to 3,826.86, 5,280.98 and 2,148.24

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Solution

The fourth proportional to 3,826.86, 5,280.98 and 2,148.24 is: 2,964.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,826.86 : 5,280.98 = 2,148.24 : x
  2. Step 2: Convert to fraction form
    3,826.86/5,280.98 = 2,148.24/x
  3. Step 3: Cross multiply
    3,826.86x = 5,280.98 × 2,148.24
  4. Step 4: Simplify right side
    3,826.86x = 11,344,812.48
  5. Step 5: Solve for x
    x = 11,344,812.48/3,826.86
  6. Step 6: Final answer
    x = 2,964.52

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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.