Home / 3,077.32-4,615.83-1,129.40

Finding the Fourth Proportional to 3,077.32, 4,615.83 and 1,129.40

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Solution

The fourth proportional to 3,077.32, 4,615.83 and 1,129.40 is: 1,694.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,077.32 : 4,615.83 = 1,129.40 : x
  2. Step 2: Convert to fraction form
    3,077.32/4,615.83 = 1,129.40/x
  3. Step 3: Cross multiply
    3,077.32x = 4,615.83 × 1,129.40
  4. Step 4: Simplify right side
    3,077.32x = 5,213,118.40
  5. Step 5: Solve for x
    x = 5,213,118.40/3,077.32
  6. Step 6: Final answer
    x = 1,694.04

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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.