Home / 2,271.20-3,398.16-1,503.20

Finding the Fourth Proportional to 2,271.20, 3,398.16 and 1,503.20

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Solution

The fourth proportional to 2,271.20, 3,398.16 and 1,503.20 is: 2,249.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,271.20 : 3,398.16 = 1,503.20 : x
  2. Step 2: Convert to fraction form
    2,271.20/3,398.16 = 1,503.20/x
  3. Step 3: Cross multiply
    2,271.20x = 3,398.16 × 1,503.20
  4. Step 4: Simplify right side
    2,271.20x = 5,108,114.11
  5. Step 5: Solve for x
    x = 5,108,114.11/2,271.20
  6. Step 6: Final answer
    x = 2,249.08

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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.