Home / 1,887.30-2,604.42-1,101.30

Finding the Fourth Proportional to 1,887.30, 2,604.42 and 1,101.30

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Solution

The fourth proportional to 1,887.30, 2,604.42 and 1,101.30 is: 1,519.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,887.30 : 2,604.42 = 1,101.30 : x
  2. Step 2: Convert to fraction form
    1,887.30/2,604.42 = 1,101.30/x
  3. Step 3: Cross multiply
    1,887.30x = 2,604.42 × 1,101.30
  4. Step 4: Simplify right side
    1,887.30x = 2,868,247.75
  5. Step 5: Solve for x
    x = 2,868,247.75/1,887.30
  6. Step 6: Final answer
    x = 1,519.76

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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.