Home / 5,389.41-8,078.86-2,577.51

Finding the Fourth Proportional to 5,389.41, 8,078.86 and 2,577.51

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Solution

The fourth proportional to 5,389.41, 8,078.86 and 2,577.51 is: 3,863.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,389.41 : 8,078.86 = 2,577.51 : x
  2. Step 2: Convert to fraction form
    5,389.41/8,078.86 = 2,577.51/x
  3. Step 3: Cross multiply
    5,389.41x = 8,078.86 × 2,577.51
  4. Step 4: Simplify right side
    5,389.41x = 20,823,302.04
  5. Step 5: Solve for x
    x = 20,823,302.04/5,389.41
  6. Step 6: Final answer
    x = 3,863.75

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1.5x scale

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.