Home / 1,411.11-2,113.16-1,020.42

Finding the Fourth Proportional to 1,411.11, 2,113.16 and 1,020.42

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Solution

The fourth proportional to 1,411.11, 2,113.16 and 1,020.42 is: 1,528.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,411.11 : 2,113.16 = 1,020.42 : x
  2. Step 2: Convert to fraction form
    1,411.11/2,113.16 = 1,020.42/x
  3. Step 3: Cross multiply
    1,411.11x = 2,113.16 × 1,020.42
  4. Step 4: Simplify right side
    1,411.11x = 2,156,305.63
  5. Step 5: Solve for x
    x = 2,156,305.63/1,411.11
  6. Step 6: Final answer
    x = 1,528.09

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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.