Home / 6,890.94-9,509.51-3,747.13

Finding the Fourth Proportional to 6,890.94, 9,509.51 and 3,747.13

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Solution

The fourth proportional to 6,890.94, 9,509.51 and 3,747.13 is: 5,171.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,890.94 : 9,509.51 = 3,747.13 : x
  2. Step 2: Convert to fraction form
    6,890.94/9,509.51 = 3,747.13/x
  3. Step 3: Cross multiply
    6,890.94x = 9,509.51 × 3,747.13
  4. Step 4: Simplify right side
    6,890.94x = 35,633,370.21
  5. Step 5: Solve for x
    x = 35,633,370.21/6,890.94
  6. Step 6: Final answer
    x = 5,171.05

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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.