Home / 3,118.68-4,682.52-2,085.12

Finding the Fourth Proportional to 3,118.68, 4,682.52 and 2,085.12

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Solution

The fourth proportional to 3,118.68, 4,682.52 and 2,085.12 is: 3,130.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,118.68 : 4,682.52 = 2,085.12 : x
  2. Step 2: Convert to fraction form
    3,118.68/4,682.52 = 2,085.12/x
  3. Step 3: Cross multiply
    3,118.68x = 4,682.52 × 2,085.12
  4. Step 4: Simplify right side
    3,118.68x = 9,763,616.10
  5. Step 5: Solve for x
    x = 9,763,616.10/3,118.68
  6. Step 6: Final answer
    x = 3,130.69

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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.