Home / 7,098.41-9,795.81-3,868.21

Finding the Fourth Proportional to 7,098.41, 9,795.81 and 3,868.21

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Solution

The fourth proportional to 7,098.41, 9,795.81 and 3,868.21 is: 5,338.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,098.41 : 9,795.81 = 3,868.21 : x
  2. Step 2: Convert to fraction form
    7,098.41/9,795.81 = 3,868.21/x
  3. Step 3: Cross multiply
    7,098.41x = 9,795.81 × 3,868.21
  4. Step 4: Simplify right side
    7,098.41x = 37,892,250.20
  5. Step 5: Solve for x
    x = 37,892,250.20/7,098.41
  6. Step 6: Final answer
    x = 5,338.13

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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.