Home / 7,850.18-11,775.38-1,927.08

Finding the Fourth Proportional to 7,850.18, 11,775.38 and 1,927.08

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Solution

The fourth proportional to 7,850.18, 11,775.38 and 1,927.08 is: 2,890.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,850.18 : 11,775.38 = 1,927.08 : x
  2. Step 2: Convert to fraction form
    7,850.18/11,775.38 = 1,927.08/x
  3. Step 3: Cross multiply
    7,850.18x = 11,775.38 × 1,927.08
  4. Step 4: Simplify right side
    7,850.18x = 22,692,089.66
  5. Step 5: Solve for x
    x = 22,692,089.66/7,850.18
  6. Step 6: Final answer
    x = 2,890.65

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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.