Home / 7,427.86-11,140.92-2,985.35

Finding the Fourth Proportional to 7,427.86, 11,140.92 and 2,985.35

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Solution

The fourth proportional to 7,427.86, 11,140.92 and 2,985.35 is: 4,477.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,427.86 : 11,140.92 = 2,985.35 : x
  2. Step 2: Convert to fraction form
    7,427.86/11,140.92 = 2,985.35/x
  3. Step 3: Cross multiply
    7,427.86x = 11,140.92 × 2,985.35
  4. Step 4: Simplify right side
    7,427.86x = 33,259,545.52
  5. Step 5: Solve for x
    x = 33,259,545.52/7,427.86
  6. Step 6: Final answer
    x = 4,477.68

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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.