Home / 7,875.59-11,815.20-2,610.38

Finding the Fourth Proportional to 7,875.59, 11,815.20 and 2,610.38

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Solution

The fourth proportional to 7,875.59, 11,815.20 and 2,610.38 is: 3,916.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,875.59 : 11,815.20 = 2,610.38 : x
  2. Step 2: Convert to fraction form
    7,875.59/11,815.20 = 2,610.38/x
  3. Step 3: Cross multiply
    7,875.59x = 11,815.20 × 2,610.38
  4. Step 4: Simplify right side
    7,875.59x = 30,842,161.78
  5. Step 5: Solve for x
    x = 30,842,161.78/7,875.59
  6. Step 6: Final answer
    x = 3,916.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.