Home / 2,420.24-3,331.52-2,089.76

Finding the Fourth Proportional to 2,420.24, 3,331.52 and 2,089.76

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Solution

The fourth proportional to 2,420.24, 3,331.52 and 2,089.76 is: 2,876.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,420.24 : 3,331.52 = 2,089.76 : x
  2. Step 2: Convert to fraction form
    2,420.24/3,331.52 = 2,089.76/x
  3. Step 3: Cross multiply
    2,420.24x = 3,331.52 × 2,089.76
  4. Step 4: Simplify right side
    2,420.24x = 6,962,077.24
  5. Step 5: Solve for x
    x = 6,962,077.24/2,420.24
  6. Step 6: Final answer
    x = 2,876.61

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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.