Home / 2,191.24-3,271.25-2,114.35

Finding the Fourth Proportional to 2,191.24, 3,271.25 and 2,114.35

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Solution

The fourth proportional to 2,191.24, 3,271.25 and 2,114.35 is: 3,156.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,191.24 : 3,271.25 = 2,114.35 : x
  2. Step 2: Convert to fraction form
    2,191.24/3,271.25 = 2,114.35/x
  3. Step 3: Cross multiply
    2,191.24x = 3,271.25 × 2,114.35
  4. Step 4: Simplify right side
    2,191.24x = 6,916,567.44
  5. Step 5: Solve for x
    x = 6,916,567.44/2,191.24
  6. Step 6: Final answer
    x = 3,156.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.