Home / 7,934.31-11,886.75-3,980.93

Finding the Fourth Proportional to 7,934.31, 11,886.75 and 3,980.93

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Solution

The fourth proportional to 7,934.31, 11,886.75 and 3,980.93 is: 5,964.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,934.31 : 11,886.75 = 3,980.93 : x
  2. Step 2: Convert to fraction form
    7,934.31/11,886.75 = 3,980.93/x
  3. Step 3: Cross multiply
    7,934.31x = 11,886.75 × 3,980.93
  4. Step 4: Simplify right side
    7,934.31x = 47,320,260.24
  5. Step 5: Solve for x
    x = 47,320,260.24/7,934.31
  6. Step 6: Final answer
    x = 5,964.00

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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.