Home / 7,765.07-11,637.88-3,870.59

Finding the Fourth Proportional to 7,765.07, 11,637.88 and 3,870.59

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Solution

The fourth proportional to 7,765.07, 11,637.88 and 3,870.59 is: 5,801.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,765.07 : 11,637.88 = 3,870.59 : x
  2. Step 2: Convert to fraction form
    7,765.07/11,637.88 = 3,870.59/x
  3. Step 3: Cross multiply
    7,765.07x = 11,637.88 × 3,870.59
  4. Step 4: Simplify right side
    7,765.07x = 45,045,394.08
  5. Step 5: Solve for x
    x = 45,045,394.08/7,765.07
  6. Step 6: Final answer
    x = 5,801.03

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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.