Home / 1,410.40-2,116.10-862.97

Finding the Fourth Proportional to 1,410.40, 2,116.10 and 862.97

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Solution

The fourth proportional to 1,410.40, 2,116.10 and 862.97 is: 1,294.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,410.40 : 2,116.10 = 862.97 : x
  2. Step 2: Convert to fraction form
    1,410.40/2,116.10 = 862.97/x
  3. Step 3: Cross multiply
    1,410.40x = 2,116.10 × 862.97
  4. Step 4: Simplify right side
    1,410.40x = 1,826,130.82
  5. Step 5: Solve for x
    x = 1,826,130.82/1,410.40
  6. Step 6: Final answer
    x = 1,294.76

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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.