Home / 5,635.49-7,776.78-3,117.56

Finding the Fourth Proportional to 5,635.49, 7,776.78 and 3,117.56

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Solution

The fourth proportional to 5,635.49, 7,776.78 and 3,117.56 is: 4,302.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,635.49 : 7,776.78 = 3,117.56 : x
  2. Step 2: Convert to fraction form
    5,635.49/7,776.78 = 3,117.56/x
  3. Step 3: Cross multiply
    5,635.49x = 7,776.78 × 3,117.56
  4. Step 4: Simplify right side
    5,635.49x = 24,244,578.26
  5. Step 5: Solve for x
    x = 24,244,578.26/5,635.49
  6. Step 6: Final answer
    x = 4,302.12

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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.