Home / 2,073.47-2,861.53-1,189.28

Finding the Fourth Proportional to 2,073.47, 2,861.53 and 1,189.28

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Solution

The fourth proportional to 2,073.47, 2,861.53 and 1,189.28 is: 1,641.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,073.47 : 2,861.53 = 1,189.28 : x
  2. Step 2: Convert to fraction form
    2,073.47/2,861.53 = 1,189.28/x
  3. Step 3: Cross multiply
    2,073.47x = 2,861.53 × 1,189.28
  4. Step 4: Simplify right side
    2,073.47x = 3,403,164.58
  5. Step 5: Solve for x
    x = 3,403,164.58/2,073.47
  6. Step 6: Final answer
    x = 1,641.29

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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.