Home / 1,354.06-1,868.85-1,132.66

Finding the Fourth Proportional to 1,354.06, 1,868.85 and 1,132.66

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Solution

The fourth proportional to 1,354.06, 1,868.85 and 1,132.66 is: 1,563.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,354.06 : 1,868.85 = 1,132.66 : x
  2. Step 2: Convert to fraction form
    1,354.06/1,868.85 = 1,132.66/x
  3. Step 3: Cross multiply
    1,354.06x = 1,868.85 × 1,132.66
  4. Step 4: Simplify right side
    1,354.06x = 2,116,771.64
  5. Step 5: Solve for x
    x = 2,116,771.64/1,354.06
  6. Step 6: Final answer
    x = 1,563.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.