Home / 2,612.80-3,917.46-1,570.20

Finding the Fourth Proportional to 2,612.80, 3,917.46 and 1,570.20

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Solution

The fourth proportional to 2,612.80, 3,917.46 and 1,570.20 is: 2,354.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,612.80 : 3,917.46 = 1,570.20 : x
  2. Step 2: Convert to fraction form
    2,612.80/3,917.46 = 1,570.20/x
  3. Step 3: Cross multiply
    2,612.80x = 3,917.46 × 1,570.20
  4. Step 4: Simplify right side
    2,612.80x = 6,151,195.69
  5. Step 5: Solve for x
    x = 6,151,195.69/2,612.80
  6. Step 6: Final answer
    x = 2,354.25

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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.