Home / 2,417.20-3,623.10-1,377.70

Finding the Fourth Proportional to 2,417.20, 3,623.10 and 1,377.70

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Solution

The fourth proportional to 2,417.20, 3,623.10 and 1,377.70 is: 2,065.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,417.20 : 3,623.10 = 1,377.70 : x
  2. Step 2: Convert to fraction form
    2,417.20/3,623.10 = 1,377.70/x
  3. Step 3: Cross multiply
    2,417.20x = 3,623.10 × 1,377.70
  4. Step 4: Simplify right side
    2,417.20x = 4,991,544.87
  5. Step 5: Solve for x
    x = 4,991,544.87/2,417.20
  6. Step 6: Final answer
    x = 2,065.01

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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.