Home / 2,157.20-3,246.75-1,612.26

Finding the Fourth Proportional to 2,157.20, 3,246.75 and 1,612.26

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Solution

The fourth proportional to 2,157.20, 3,246.75 and 1,612.26 is: 2,426.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,157.20 : 3,246.75 = 1,612.26 : x
  2. Step 2: Convert to fraction form
    2,157.20/3,246.75 = 1,612.26/x
  3. Step 3: Cross multiply
    2,157.20x = 3,246.75 × 1,612.26
  4. Step 4: Simplify right side
    2,157.20x = 5,234,605.16
  5. Step 5: Solve for x
    x = 5,234,605.16/2,157.20
  6. Step 6: Final answer
    x = 2,426.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.