Home / 4,914.56-6,781.33-2,818.28

Finding the Fourth Proportional to 4,914.56, 6,781.33 and 2,818.28

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Solution

The fourth proportional to 4,914.56, 6,781.33 and 2,818.28 is: 3,888.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,914.56 : 6,781.33 = 2,818.28 : x
  2. Step 2: Convert to fraction form
    4,914.56/6,781.33 = 2,818.28/x
  3. Step 3: Cross multiply
    4,914.56x = 6,781.33 × 2,818.28
  4. Step 4: Simplify right side
    4,914.56x = 19,111,686.71
  5. Step 5: Solve for x
    x = 19,111,686.71/4,914.56
  6. Step 6: Final answer
    x = 3,888.79

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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.