Home / 6,240.78-9,360.45-1,857.87

Finding the Fourth Proportional to 6,240.78, 9,360.45 and 1,857.87

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Solution

The fourth proportional to 6,240.78, 9,360.45 and 1,857.87 is: 2,786.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,240.78 : 9,360.45 = 1,857.87 : x
  2. Step 2: Convert to fraction form
    6,240.78/9,360.45 = 1,857.87/x
  3. Step 3: Cross multiply
    6,240.78x = 9,360.45 × 1,857.87
  4. Step 4: Simplify right side
    6,240.78x = 17,390,499.24
  5. Step 5: Solve for x
    x = 17,390,499.24/6,240.78
  6. Step 6: Final answer
    x = 2,786.59

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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.