Home / 3,370.92-5,053.86-1,290.12

Finding the Fourth Proportional to 3,370.92, 5,053.86 and 1,290.12

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Solution

The fourth proportional to 3,370.92, 5,053.86 and 1,290.12 is: 1,934.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,370.92 : 5,053.86 = 1,290.12 : x
  2. Step 2: Convert to fraction form
    3,370.92/5,053.86 = 1,290.12/x
  3. Step 3: Cross multiply
    3,370.92x = 5,053.86 × 1,290.12
  4. Step 4: Simplify right side
    3,370.92x = 6,520,085.86
  5. Step 5: Solve for x
    x = 6,520,085.86/3,370.92
  6. Step 6: Final answer
    x = 1,934.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.