Home / 1,459.85-2,197.56-1,309.15

Finding the Fourth Proportional to 1,459.85, 2,197.56 and 1,309.15

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Solution

The fourth proportional to 1,459.85, 2,197.56 and 1,309.15 is: 1,970.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,459.85 : 2,197.56 = 1,309.15 : x
  2. Step 2: Convert to fraction form
    1,459.85/2,197.56 = 1,309.15/x
  3. Step 3: Cross multiply
    1,459.85x = 2,197.56 × 1,309.15
  4. Step 4: Simplify right side
    1,459.85x = 2,876,943.33
  5. Step 5: Solve for x
    x = 2,876,943.33/1,459.85
  6. Step 6: Final answer
    x = 1,970.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.