Home / 1,406.46-2,101.84-1,261.92

Finding the Fourth Proportional to 1,406.46, 2,101.84 and 1,261.92

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Solution

The fourth proportional to 1,406.46, 2,101.84 and 1,261.92 is: 1,885.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,406.46 : 2,101.84 = 1,261.92 : x
  2. Step 2: Convert to fraction form
    1,406.46/2,101.84 = 1,261.92/x
  3. Step 3: Cross multiply
    1,406.46x = 2,101.84 × 1,261.92
  4. Step 4: Simplify right side
    1,406.46x = 2,652,353.93
  5. Step 5: Solve for x
    x = 2,652,353.93/1,406.46
  6. Step 6: Final answer
    x = 1,885.84

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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.