Home / 3,390.15-5,086.01-1,310.18

Finding the Fourth Proportional to 3,390.15, 5,086.01 and 1,310.18

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Solution

The fourth proportional to 3,390.15, 5,086.01 and 1,310.18 is: 1,965.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,390.15 : 5,086.01 = 1,310.18 : x
  2. Step 2: Convert to fraction form
    3,390.15/5,086.01 = 1,310.18/x
  3. Step 3: Cross multiply
    3,390.15x = 5,086.01 × 1,310.18
  4. Step 4: Simplify right side
    3,390.15x = 6,663,569.32
  5. Step 5: Solve for x
    x = 6,663,569.32/3,390.15
  6. Step 6: Final answer
    x = 1,965.57

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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.