Home / 3,119.04-4,305.15-1,859.69

Finding the Fourth Proportional to 3,119.04, 4,305.15 and 1,859.69

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Solution

The fourth proportional to 3,119.04, 4,305.15 and 1,859.69 is: 2,566.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,119.04 : 4,305.15 = 1,859.69 : x
  2. Step 2: Convert to fraction form
    3,119.04/4,305.15 = 1,859.69/x
  3. Step 3: Cross multiply
    3,119.04x = 4,305.15 × 1,859.69
  4. Step 4: Simplify right side
    3,119.04x = 8,006,255.17
  5. Step 5: Solve for x
    x = 8,006,255.17/3,119.04
  6. Step 6: Final answer
    x = 2,566.90

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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.