Home / 4,987.72-6,885.69-3,866.14

Finding the Fourth Proportional to 4,987.72, 6,885.69 and 3,866.14

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Solution

The fourth proportional to 4,987.72, 6,885.69 and 3,866.14 is: 5,337.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,987.72 : 6,885.69 = 3,866.14 : x
  2. Step 2: Convert to fraction form
    4,987.72/6,885.69 = 3,866.14/x
  3. Step 3: Cross multiply
    4,987.72x = 6,885.69 × 3,866.14
  4. Step 4: Simplify right side
    4,987.72x = 26,621,007.11
  5. Step 5: Solve for x
    x = 26,621,007.11/4,987.72
  6. Step 6: Final answer
    x = 5,337.32

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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.