Home / 4,987.91-6,886.55-3,101.56

Finding the Fourth Proportional to 4,987.91, 6,886.55 and 3,101.56

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Solution

The fourth proportional to 4,987.91, 6,886.55 and 3,101.56 is: 4,282.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,987.91 : 6,886.55 = 3,101.56 : x
  2. Step 2: Convert to fraction form
    4,987.91/6,886.55 = 3,101.56/x
  3. Step 3: Cross multiply
    4,987.91x = 6,886.55 × 3,101.56
  4. Step 4: Simplify right side
    4,987.91x = 21,359,038.56
  5. Step 5: Solve for x
    x = 21,359,038.56/4,987.91
  6. Step 6: Final answer
    x = 4,282.16

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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.