Home / 4,987.32-6,882.45-2,972.12

Finding the Fourth Proportional to 4,987.32, 6,882.45 and 2,972.12

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Solution

The fourth proportional to 4,987.32, 6,882.45 and 2,972.12 is: 4,101.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,987.32 : 6,882.45 = 2,972.12 : x
  2. Step 2: Convert to fraction form
    4,987.32/6,882.45 = 2,972.12/x
  3. Step 3: Cross multiply
    4,987.32x = 6,882.45 × 2,972.12
  4. Step 4: Simplify right side
    4,987.32x = 20,455,467.29
  5. Step 5: Solve for x
    x = 20,455,467.29/4,987.32
  6. Step 6: Final answer
    x = 4,101.49

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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.