Home / 5,931.87-8,894.79-1,981.76

Finding the Fourth Proportional to 5,931.87, 8,894.79 and 1,981.76

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Solution

The fourth proportional to 5,931.87, 8,894.79 and 1,981.76 is: 2,971.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,931.87 : 8,894.79 = 1,981.76 : x
  2. Step 2: Convert to fraction form
    5,931.87/8,894.79 = 1,981.76/x
  3. Step 3: Cross multiply
    5,931.87x = 8,894.79 × 1,981.76
  4. Step 4: Simplify right side
    5,931.87x = 17,627,294.56
  5. Step 5: Solve for x
    x = 17,627,294.56/5,931.87
  6. Step 6: Final answer
    x = 2,971.63

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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.