Home / 2,269.35-3,130.95-1,274.49

Finding the Fourth Proportional to 2,269.35, 3,130.95 and 1,274.49

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Solution

The fourth proportional to 2,269.35, 3,130.95 and 1,274.49 is: 1,758.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,269.35 : 3,130.95 = 1,274.49 : x
  2. Step 2: Convert to fraction form
    2,269.35/3,130.95 = 1,274.49/x
  3. Step 3: Cross multiply
    2,269.35x = 3,130.95 × 1,274.49
  4. Step 4: Simplify right side
    2,269.35x = 3,990,364.47
  5. Step 5: Solve for x
    x = 3,990,364.47/2,269.35
  6. Step 6: Final answer
    x = 1,758.37

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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.