Home / 3,077.13-4,612.93-1,128.88

Finding the Fourth Proportional to 3,077.13, 4,612.93 and 1,128.88

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Solution

The fourth proportional to 3,077.13, 4,612.93 and 1,128.88 is: 1,692.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,077.13 : 4,612.93 = 1,128.88 : x
  2. Step 2: Convert to fraction form
    3,077.13/4,612.93 = 1,128.88/x
  3. Step 3: Cross multiply
    3,077.13x = 4,612.93 × 1,128.88
  4. Step 4: Simplify right side
    3,077.13x = 5,207,444.42
  5. Step 5: Solve for x
    x = 5,207,444.42/3,077.13
  6. Step 6: Final answer
    x = 1,692.31

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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.