Home / 7,886.24-11,831.40-2,692.16

Finding the Fourth Proportional to 7,886.24, 11,831.40 and 2,692.16

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Solution

The fourth proportional to 7,886.24, 11,831.40 and 2,692.16 is: 4,038.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,886.24 : 11,831.40 = 2,692.16 : x
  2. Step 2: Convert to fraction form
    7,886.24/11,831.40 = 2,692.16/x
  3. Step 3: Cross multiply
    7,886.24x = 11,831.40 × 2,692.16
  4. Step 4: Simplify right side
    7,886.24x = 31,852,021.82
  5. Step 5: Solve for x
    x = 31,852,021.82/7,886.24
  6. Step 6: Final answer
    x = 4,038.94

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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.