Home / 1,474.88-2,215.92-1,417.28

Finding the Fourth Proportional to 1,474.88, 2,215.92 and 1,417.28

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Solution

The fourth proportional to 1,474.88, 2,215.92 and 1,417.28 is: 2,129.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,474.88 : 2,215.92 = 1,417.28 : x
  2. Step 2: Convert to fraction form
    1,474.88/2,215.92 = 1,417.28/x
  3. Step 3: Cross multiply
    1,474.88x = 2,215.92 × 1,417.28
  4. Step 4: Simplify right side
    1,474.88x = 3,140,579.10
  5. Step 5: Solve for x
    x = 3,140,579.10/1,474.88
  6. Step 6: Final answer
    x = 2,129.38

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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.