Home / 2,111.19-3,166.04-724.16

Finding the Fourth Proportional to 2,111.19, 3,166.04 and 724.16

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Solution

The fourth proportional to 2,111.19, 3,166.04 and 724.16 is: 1,085.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,111.19 : 3,166.04 = 724.16 : x
  2. Step 2: Convert to fraction form
    2,111.19/3,166.04 = 724.16/x
  3. Step 3: Cross multiply
    2,111.19x = 3,166.04 × 724.16
  4. Step 4: Simplify right side
    2,111.19x = 2,292,700.08
  5. Step 5: Solve for x
    x = 2,292,700.08/2,111.19
  6. Step 6: Final answer
    x = 1,085.98

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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.