Home / 4,971.88-6,858.33-2,981.28

Finding the Fourth Proportional to 4,971.88, 6,858.33 and 2,981.28

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Solution

The fourth proportional to 4,971.88, 6,858.33 and 2,981.28 is: 4,112.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,971.88 : 6,858.33 = 2,981.28 : x
  2. Step 2: Convert to fraction form
    4,971.88/6,858.33 = 2,981.28/x
  3. Step 3: Cross multiply
    4,971.88x = 6,858.33 × 2,981.28
  4. Step 4: Simplify right side
    4,971.88x = 20,446,602.06
  5. Step 5: Solve for x
    x = 20,446,602.06/4,971.88
  6. Step 6: Final answer
    x = 4,112.45

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1.5x scale

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.