Home / 3,052.32-4,215-2,888.64

Finding the Fourth Proportional to 3,052.32, 4,215 and 2,888.64

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Solution

The fourth proportional to 3,052.32, 4,215 and 2,888.64 is: 3,988.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,052.32 : 4,215 = 2,888.64 : x
  2. Step 2: Convert to fraction form
    3,052.32/4,215 = 2,888.64/x
  3. Step 3: Cross multiply
    3,052.32x = 4,215 × 2,888.64
  4. Step 4: Simplify right side
    3,052.32x = 12,175,617.60
  5. Step 5: Solve for x
    x = 12,175,617.60/3,052.32
  6. Step 6: Final answer
    x = 3,988.97

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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.