Home / 1,017.10-1,384.75-1,013.95

Finding the Fourth Proportional to 1,017.10, 1,384.75 and 1,013.95

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Solution

The fourth proportional to 1,017.10, 1,384.75 and 1,013.95 is: 1,380.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,017.10 : 1,384.75 = 1,013.95 : x
  2. Step 2: Convert to fraction form
    1,017.10/1,384.75 = 1,013.95/x
  3. Step 3: Cross multiply
    1,017.10x = 1,384.75 × 1,013.95
  4. Step 4: Simplify right side
    1,017.10x = 1,404,067.26
  5. Step 5: Solve for x
    x = 1,404,067.26/1,017.10
  6. Step 6: Final answer
    x = 1,380.46

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.