Home / 2,079.21-2,869.30-1,135.00

Finding the Fourth Proportional to 2,079.21, 2,869.30 and 1,135.00

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Solution

The fourth proportional to 2,079.21, 2,869.30 and 1,135.00 is: 1,566.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,079.21 : 2,869.30 = 1,135.00 : x
  2. Step 2: Convert to fraction form
    2,079.21/2,869.30 = 1,135.00/x
  3. Step 3: Cross multiply
    2,079.21x = 2,869.30 × 1,135.00
  4. Step 4: Simplify right side
    2,079.21x = 3,256,635.48
  5. Step 5: Solve for x
    x = 3,256,635.48/2,079.21
  6. Step 6: Final answer
    x = 1,566.29

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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.