Home / 2,911.13-4,017.71-1,732.85

Finding the Fourth Proportional to 2,911.13, 4,017.71 and 1,732.85

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Solution

The fourth proportional to 2,911.13, 4,017.71 and 1,732.85 is: 2,391.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,911.13 : 4,017.71 = 1,732.85 : x
  2. Step 2: Convert to fraction form
    2,911.13/4,017.71 = 1,732.85/x
  3. Step 3: Cross multiply
    2,911.13x = 4,017.71 × 1,732.85
  4. Step 4: Simplify right side
    2,911.13x = 6,962,088.77
  5. Step 5: Solve for x
    x = 6,962,088.77/2,911.13
  6. Step 6: Final answer
    x = 2,391.54

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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.