Home / 4,987.32-6,878.70-3,812.28

Finding the Fourth Proportional to 4,987.32, 6,878.70 and 3,812.28

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Solution

The fourth proportional to 4,987.32, 6,878.70 and 3,812.28 is: 5,258.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,987.32 : 6,878.70 = 3,812.28 : x
  2. Step 2: Convert to fraction form
    4,987.32/6,878.70 = 3,812.28/x
  3. Step 3: Cross multiply
    4,987.32x = 6,878.70 × 3,812.28
  4. Step 4: Simplify right side
    4,987.32x = 26,223,530.44
  5. Step 5: Solve for x
    x = 26,223,530.44/4,987.32
  6. Step 6: Final answer
    x = 5,258.04

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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.