Home / 2,111.13-3,166.69-572.13

Finding the Fourth Proportional to 2,111.13, 3,166.69 and 572.13

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Solution

The fourth proportional to 2,111.13, 3,166.69 and 572.13 is: 858.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,111.13 : 3,166.69 = 572.13 : x
  2. Step 2: Convert to fraction form
    2,111.13/3,166.69 = 572.13/x
  3. Step 3: Cross multiply
    2,111.13x = 3,166.69 × 572.13
  4. Step 4: Simplify right side
    2,111.13x = 1,811,758.35
  5. Step 5: Solve for x
    x = 1,811,758.35/2,111.13
  6. Step 6: Final answer
    x = 858.19

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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.