Home / 4,971.48-6,860.40-2,981.04

Finding the Fourth Proportional to 4,971.48, 6,860.40 and 2,981.04

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Solution

The fourth proportional to 4,971.48, 6,860.40 and 2,981.04 is: 4,113.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,971.48 : 6,860.40 = 2,981.04 : x
  2. Step 2: Convert to fraction form
    4,971.48/6,860.40 = 2,981.04/x
  3. Step 3: Cross multiply
    4,971.48x = 6,860.40 × 2,981.04
  4. Step 4: Simplify right side
    4,971.48x = 20,451,126.82
  5. Step 5: Solve for x
    x = 20,451,126.82/4,971.48
  6. Step 6: Final answer
    x = 4,113.69

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.