Home / 7,110.47-9,810.15-3,966.05

Finding the Fourth Proportional to 7,110.47, 9,810.15 and 3,966.05

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Solution

The fourth proportional to 7,110.47, 9,810.15 and 3,966.05 is: 5,471.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,110.47 : 9,810.15 = 3,966.05 : x
  2. Step 2: Convert to fraction form
    7,110.47/9,810.15 = 3,966.05/x
  3. Step 3: Cross multiply
    7,110.47x = 9,810.15 × 3,966.05
  4. Step 4: Simplify right side
    7,110.47x = 38,907,496.36
  5. Step 5: Solve for x
    x = 38,907,496.36/7,110.47
  6. Step 6: Final answer
    x = 5,471.86

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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.