Home / 3,074.09-4,612.14-1,318.28

Finding the Fourth Proportional to 3,074.09, 4,612.14 and 1,318.28

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Solution

The fourth proportional to 3,074.09, 4,612.14 and 1,318.28 is: 1,977.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,074.09 : 4,612.14 = 1,318.28 : x
  2. Step 2: Convert to fraction form
    3,074.09/4,612.14 = 1,318.28/x
  3. Step 3: Cross multiply
    3,074.09x = 4,612.14 × 1,318.28
  4. Step 4: Simplify right side
    3,074.09x = 6,080,068.86
  5. Step 5: Solve for x
    x = 6,080,068.86/3,074.09
  6. Step 6: Final answer
    x = 1,977.85

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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.