Home / 3,617.60-5,428.20-2,058.80

Finding the Fourth Proportional to 3,617.60, 5,428.20 and 2,058.80

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Solution

The fourth proportional to 3,617.60, 5,428.20 and 2,058.80 is: 3,089.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,617.60 : 5,428.20 = 2,058.80 : x
  2. Step 2: Convert to fraction form
    3,617.60/5,428.20 = 2,058.80/x
  3. Step 3: Cross multiply
    3,617.60x = 5,428.20 × 2,058.80
  4. Step 4: Simplify right side
    3,617.60x = 11,175,578.16
  5. Step 5: Solve for x
    x = 11,175,578.16/3,617.60
  6. Step 6: Final answer
    x = 3,089.22

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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.