Home / 6,895.41-9,515.70-3,911.28

Finding the Fourth Proportional to 6,895.41, 9,515.70 and 3,911.28

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Solution

The fourth proportional to 6,895.41, 9,515.70 and 3,911.28 is: 5,397.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,895.41 : 9,515.70 = 3,911.28 : x
  2. Step 2: Convert to fraction form
    6,895.41/9,515.70 = 3,911.28/x
  3. Step 3: Cross multiply
    6,895.41x = 9,515.70 × 3,911.28
  4. Step 4: Simplify right side
    6,895.41x = 37,218,567.10
  5. Step 5: Solve for x
    x = 37,218,567.10/6,895.41
  6. Step 6: Final answer
    x = 5,397.59

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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.