Home / 2,079.72-2,869.80-1,195.35

Finding the Fourth Proportional to 2,079.72, 2,869.80 and 1,195.35

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Solution

The fourth proportional to 2,079.72, 2,869.80 and 1,195.35 is: 1,649.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,079.72 : 2,869.80 = 1,195.35 : x
  2. Step 2: Convert to fraction form
    2,079.72/2,869.80 = 1,195.35/x
  3. Step 3: Cross multiply
    2,079.72x = 2,869.80 × 1,195.35
  4. Step 4: Simplify right side
    2,079.72x = 3,430,415.43
  5. Step 5: Solve for x
    x = 3,430,415.43/2,079.72
  6. Step 6: Final answer
    x = 1,649.46

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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.