Home / 2,911.01-4,017.20-1,732.05

Finding the Fourth Proportional to 2,911.01, 4,017.20 and 1,732.05

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Solution

The fourth proportional to 2,911.01, 4,017.20 and 1,732.05 is: 2,390.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,911.01 : 4,017.20 = 1,732.05 : x
  2. Step 2: Convert to fraction form
    2,911.01/4,017.20 = 1,732.05/x
  3. Step 3: Cross multiply
    2,911.01x = 4,017.20 × 1,732.05
  4. Step 4: Simplify right side
    2,911.01x = 6,957,982.60
  5. Step 5: Solve for x
    x = 6,957,982.60/2,911.01
  6. Step 6: Final answer
    x = 2,390.23

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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.