Home / 7,715.64-11,575.54-2,521.50

Finding the Fourth Proportional to 7,715.64, 11,575.54 and 2,521.50

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Solution

The fourth proportional to 7,715.64, 11,575.54 and 2,521.50 is: 3,782.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,715.64 : 11,575.54 = 2,521.50 : x
  2. Step 2: Convert to fraction form
    7,715.64/11,575.54 = 2,521.50/x
  3. Step 3: Cross multiply
    7,715.64x = 11,575.54 × 2,521.50
  4. Step 4: Simplify right side
    7,715.64x = 29,187,724.11
  5. Step 5: Solve for x
    x = 29,187,724.11/7,715.64
  6. Step 6: Final answer
    x = 3,782.93

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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.