Home / 2,184.98-3,275.24-1,405.76

Finding the Fourth Proportional to 2,184.98, 3,275.24 and 1,405.76

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Solution

The fourth proportional to 2,184.98, 3,275.24 and 1,405.76 is: 2,107.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,184.98 : 3,275.24 = 1,405.76 : x
  2. Step 2: Convert to fraction form
    2,184.98/3,275.24 = 1,405.76/x
  3. Step 3: Cross multiply
    2,184.98x = 3,275.24 × 1,405.76
  4. Step 4: Simplify right side
    2,184.98x = 4,604,177.98
  5. Step 5: Solve for x
    x = 4,604,177.98/2,184.98
  6. Step 6: Final answer
    x = 2,107.20

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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.