Home / 7,710.76-11,565.96-1,867.36

Finding the Fourth Proportional to 7,710.76, 11,565.96 and 1,867.36

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Solution

The fourth proportional to 7,710.76, 11,565.96 and 1,867.36 is: 2,801.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,710.76 : 11,565.96 = 1,867.36 : x
  2. Step 2: Convert to fraction form
    7,710.76/11,565.96 = 1,867.36/x
  3. Step 3: Cross multiply
    7,710.76x = 11,565.96 × 1,867.36
  4. Step 4: Simplify right side
    7,710.76x = 21,597,811.07
  5. Step 5: Solve for x
    x = 21,597,811.07/7,710.76
  6. Step 6: Final answer
    x = 2,801.00

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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.