Home / 5,578.24-8,362.40-2,117.92

Finding the Fourth Proportional to 5,578.24, 8,362.40 and 2,117.92

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Solution

The fourth proportional to 5,578.24, 8,362.40 and 2,117.92 is: 3,175.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,578.24 : 8,362.40 = 2,117.92 : x
  2. Step 2: Convert to fraction form
    5,578.24/8,362.40 = 2,117.92/x
  3. Step 3: Cross multiply
    5,578.24x = 8,362.40 × 2,117.92
  4. Step 4: Simplify right side
    5,578.24x = 17,710,894.21
  5. Step 5: Solve for x
    x = 17,710,894.21/5,578.24
  6. Step 6: Final answer
    x = 3,175.00

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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.