Home / 2,079.56-2,869.48-1,195.40

Finding the Fourth Proportional to 2,079.56, 2,869.48 and 1,195.40

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Solution

The fourth proportional to 2,079.56, 2,869.48 and 1,195.40 is: 1,649.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,079.56 : 2,869.48 = 1,195.40 : x
  2. Step 2: Convert to fraction form
    2,079.56/2,869.48 = 1,195.40/x
  3. Step 3: Cross multiply
    2,079.56x = 2,869.48 × 1,195.40
  4. Step 4: Simplify right side
    2,079.56x = 3,430,176.39
  5. Step 5: Solve for x
    x = 3,430,176.39/2,079.56
  6. Step 6: Final answer
    x = 1,649.47

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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.