Home / 6,261.11-9,391.65-1,878.57

Finding the Fourth Proportional to 6,261.11, 9,391.65 and 1,878.57

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Solution

The fourth proportional to 6,261.11, 9,391.65 and 1,878.57 is: 2,817.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,261.11 : 9,391.65 = 1,878.57 : x
  2. Step 2: Convert to fraction form
    6,261.11/9,391.65 = 1,878.57/x
  3. Step 3: Cross multiply
    6,261.11x = 9,391.65 × 1,878.57
  4. Step 4: Simplify right side
    6,261.11x = 17,642,871.94
  5. Step 5: Solve for x
    x = 17,642,871.94/6,261.11
  6. Step 6: Final answer
    x = 2,817.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.