Home / 7,925.72-11,889.95-2,661.24

Finding the Fourth Proportional to 7,925.72, 11,889.95 and 2,661.24

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Solution

The fourth proportional to 7,925.72, 11,889.95 and 2,661.24 is: 3,992.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,925.72 : 11,889.95 = 2,661.24 : x
  2. Step 2: Convert to fraction form
    7,925.72/11,889.95 = 2,661.24/x
  3. Step 3: Cross multiply
    7,925.72x = 11,889.95 × 2,661.24
  4. Step 4: Simplify right side
    7,925.72x = 31,642,040.72
  5. Step 5: Solve for x
    x = 31,642,040.72/7,925.72
  6. Step 6: Final answer
    x = 3,992.32

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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.