Home / 3,118.42-4,303.97-1,859.55

Finding the Fourth Proportional to 3,118.42, 4,303.97 and 1,859.55

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Solution

The fourth proportional to 3,118.42, 4,303.97 and 1,859.55 is: 2,566.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,118.42 : 4,303.97 = 1,859.55 : x
  2. Step 2: Convert to fraction form
    3,118.42/4,303.97 = 1,859.55/x
  3. Step 3: Cross multiply
    3,118.42x = 4,303.97 × 1,859.55
  4. Step 4: Simplify right side
    3,118.42x = 8,003,438.12
  5. Step 5: Solve for x
    x = 8,003,438.12/3,118.42
  6. Step 6: Final answer
    x = 2,566.51

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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.