Home / 7,547.72-11,325.29-3,390.66

Finding the Fourth Proportional to 7,547.72, 11,325.29 and 3,390.66

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Solution

The fourth proportional to 7,547.72, 11,325.29 and 3,390.66 is: 5,087.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,547.72 : 11,325.29 = 3,390.66 : x
  2. Step 2: Convert to fraction form
    7,547.72/11,325.29 = 3,390.66/x
  3. Step 3: Cross multiply
    7,547.72x = 11,325.29 × 3,390.66
  4. Step 4: Simplify right side
    7,547.72x = 38,400,190.84
  5. Step 5: Solve for x
    x = 38,400,190.84/7,547.72
  6. Step 6: Final answer
    x = 5,087.66

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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.