Home / 4,986.51-6,886.05-3,126.75

Finding the Fourth Proportional to 4,986.51, 6,886.05 and 3,126.75

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Solution

The fourth proportional to 4,986.51, 6,886.05 and 3,126.75 is: 4,317.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,986.51 : 6,886.05 = 3,126.75 : x
  2. Step 2: Convert to fraction form
    4,986.51/6,886.05 = 3,126.75/x
  3. Step 3: Cross multiply
    4,986.51x = 6,886.05 × 3,126.75
  4. Step 4: Simplify right side
    4,986.51x = 21,530,956.84
  5. Step 5: Solve for x
    x = 21,530,956.84/4,986.51
  6. Step 6: Final answer
    x = 4,317.84

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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.