Home / 2,191.12-3,024.24-1,260.16

Finding the Fourth Proportional to 2,191.12, 3,024.24 and 1,260.16

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Solution

The fourth proportional to 2,191.12, 3,024.24 and 1,260.16 is: 1,739.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,191.12 : 3,024.24 = 1,260.16 : x
  2. Step 2: Convert to fraction form
    2,191.12/3,024.24 = 1,260.16/x
  3. Step 3: Cross multiply
    2,191.12x = 3,024.24 × 1,260.16
  4. Step 4: Simplify right side
    2,191.12x = 3,811,026.28
  5. Step 5: Solve for x
    x = 3,811,026.28/2,191.12
  6. Step 6: Final answer
    x = 1,739.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.