Home / 2,406.34-3,322.11-2,143.90

Finding the Fourth Proportional to 2,406.34, 3,322.11 and 2,143.90

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Solution

The fourth proportional to 2,406.34, 3,322.11 and 2,143.90 is: 2,959.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,406.34 : 3,322.11 = 2,143.90 : x
  2. Step 2: Convert to fraction form
    2,406.34/3,322.11 = 2,143.90/x
  3. Step 3: Cross multiply
    2,406.34x = 3,322.11 × 2,143.90
  4. Step 4: Simplify right side
    2,406.34x = 7,122,271.63
  5. Step 5: Solve for x
    x = 7,122,271.63/2,406.34
  6. Step 6: Final answer
    x = 2,959.79

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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.