Home / 2,269.17-3,130.92-1,274.49

Finding the Fourth Proportional to 2,269.17, 3,130.92 and 1,274.49

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Solution

The fourth proportional to 2,269.17, 3,130.92 and 1,274.49 is: 1,758.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,269.17 : 3,130.92 = 1,274.49 : x
  2. Step 2: Convert to fraction form
    2,269.17/3,130.92 = 1,274.49/x
  3. Step 3: Cross multiply
    2,269.17x = 3,130.92 × 1,274.49
  4. Step 4: Simplify right side
    2,269.17x = 3,990,326.23
  5. Step 5: Solve for x
    x = 3,990,326.23/2,269.17
  6. Step 6: Final answer
    x = 1,758.50

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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.