Home / 5,262.72-7,888.08-2,660.16

Finding the Fourth Proportional to 5,262.72, 7,888.08 and 2,660.16

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Solution

The fourth proportional to 5,262.72, 7,888.08 and 2,660.16 is: 3,987.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,262.72 : 7,888.08 = 2,660.16 : x
  2. Step 2: Convert to fraction form
    5,262.72/7,888.08 = 2,660.16/x
  3. Step 3: Cross multiply
    5,262.72x = 7,888.08 × 2,660.16
  4. Step 4: Simplify right side
    5,262.72x = 20,983,554.89
  5. Step 5: Solve for x
    x = 20,983,554.89/5,262.72
  6. Step 6: Final answer
    x = 3,987.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.