Home / 2,219.09-3,062.45-1,275.19

Finding the Fourth Proportional to 2,219.09, 3,062.45 and 1,275.19

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Solution

The fourth proportional to 2,219.09, 3,062.45 and 1,275.19 is: 1,759.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,219.09 : 3,062.45 = 1,275.19 : x
  2. Step 2: Convert to fraction form
    2,219.09/3,062.45 = 1,275.19/x
  3. Step 3: Cross multiply
    2,219.09x = 3,062.45 × 1,275.19
  4. Step 4: Simplify right side
    2,219.09x = 3,905,199.72
  5. Step 5: Solve for x
    x = 3,905,199.72/2,219.09
  6. Step 6: Final answer
    x = 1,759.82

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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.