Home / 3,110.87-4,292.86-1,784.49

Finding the Fourth Proportional to 3,110.87, 4,292.86 and 1,784.49

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Solution

The fourth proportional to 3,110.87, 4,292.86 and 1,784.49 is: 2,462.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,110.87 : 4,292.86 = 1,784.49 : x
  2. Step 2: Convert to fraction form
    3,110.87/4,292.86 = 1,784.49/x
  3. Step 3: Cross multiply
    3,110.87x = 4,292.86 × 1,784.49
  4. Step 4: Simplify right side
    3,110.87x = 7,660,565.74
  5. Step 5: Solve for x
    x = 7,660,565.74/3,110.87
  6. Step 6: Final answer
    x = 2,462.52

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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.