Home / 2,079.36-2,869.47-1,135.11

Finding the Fourth Proportional to 2,079.36, 2,869.47 and 1,135.11

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Solution

The fourth proportional to 2,079.36, 2,869.47 and 1,135.11 is: 1,566.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,079.36 : 2,869.47 = 1,135.11 : x
  2. Step 2: Convert to fraction form
    2,079.36/2,869.47 = 1,135.11/x
  3. Step 3: Cross multiply
    2,079.36x = 2,869.47 × 1,135.11
  4. Step 4: Simplify right side
    2,079.36x = 3,257,174.05
  5. Step 5: Solve for x
    x = 3,257,174.05/2,079.36
  6. Step 6: Final answer
    x = 1,566.43

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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.