Home / 7,738.40-11,603.28-2,543.84

Finding the Fourth Proportional to 7,738.40, 11,603.28 and 2,543.84

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Solution

The fourth proportional to 7,738.40, 11,603.28 and 2,543.84 is: 3,814.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,738.40 : 11,603.28 = 2,543.84 : x
  2. Step 2: Convert to fraction form
    7,738.40/11,603.28 = 2,543.84/x
  3. Step 3: Cross multiply
    7,738.40x = 11,603.28 × 2,543.84
  4. Step 4: Simplify right side
    7,738.40x = 29,516,887.80
  5. Step 5: Solve for x
    x = 29,516,887.80/7,738.40
  6. Step 6: Final answer
    x = 3,814.34

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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.