Home / 5,815.77-8,028.74-3,937.29

Finding the Fourth Proportional to 5,815.77, 8,028.74 and 3,937.29

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Solution

The fourth proportional to 5,815.77, 8,028.74 and 3,937.29 is: 5,435.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,815.77 : 8,028.74 = 3,937.29 : x
  2. Step 2: Convert to fraction form
    5,815.77/8,028.74 = 3,937.29/x
  3. Step 3: Cross multiply
    5,815.77x = 8,028.74 × 3,937.29
  4. Step 4: Simplify right side
    5,815.77x = 31,611,477.71
  5. Step 5: Solve for x
    x = 31,611,477.71/5,815.77
  6. Step 6: Final answer
    x = 5,435.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.