Home / 5,104.61-7,653.29-1,981.98

Finding the Fourth Proportional to 5,104.61, 7,653.29 and 1,981.98

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Solution

The fourth proportional to 5,104.61, 7,653.29 and 1,981.98 is: 2,971.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,104.61 : 7,653.29 = 1,981.98 : x
  2. Step 2: Convert to fraction form
    5,104.61/7,653.29 = 1,981.98/x
  3. Step 3: Cross multiply
    5,104.61x = 7,653.29 × 1,981.98
  4. Step 4: Simplify right side
    5,104.61x = 15,168,683.30
  5. Step 5: Solve for x
    x = 15,168,683.30/5,104.61
  6. Step 6: Final answer
    x = 2,971.57

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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.