Home / 2,420.15-3,624.80-2,103.74

Finding the Fourth Proportional to 2,420.15, 3,624.80 and 2,103.74

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Solution

The fourth proportional to 2,420.15, 3,624.80 and 2,103.74 is: 3,150.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,420.15 : 3,624.80 = 2,103.74 : x
  2. Step 2: Convert to fraction form
    2,420.15/3,624.80 = 2,103.74/x
  3. Step 3: Cross multiply
    2,420.15x = 3,624.80 × 2,103.74
  4. Step 4: Simplify right side
    2,420.15x = 7,625,608.11
  5. Step 5: Solve for x
    x = 7,625,608.11/2,420.15
  6. Step 6: Final answer
    x = 3,150.88

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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.