Home / 1,170.90-1,748.64-1,017.30

Finding the Fourth Proportional to 1,170.90, 1,748.64 and 1,017.30

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Solution

The fourth proportional to 1,170.90, 1,748.64 and 1,017.30 is: 1,519.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,170.90 : 1,748.64 = 1,017.30 : x
  2. Step 2: Convert to fraction form
    1,170.90/1,748.64 = 1,017.30/x
  3. Step 3: Cross multiply
    1,170.90x = 1,748.64 × 1,017.30
  4. Step 4: Simplify right side
    1,170.90x = 1,778,891.47
  5. Step 5: Solve for x
    x = 1,778,891.47/1,170.90
  6. Step 6: Final answer
    x = 1,519.25

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.