Home / 5,178.80-7,771.36-2,058.24

Finding the Fourth Proportional to 5,178.80, 7,771.36 and 2,058.24

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Solution

The fourth proportional to 5,178.80, 7,771.36 and 2,058.24 is: 3,088.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,178.80 : 7,771.36 = 2,058.24 : x
  2. Step 2: Convert to fraction form
    5,178.80/7,771.36 = 2,058.24/x
  3. Step 3: Cross multiply
    5,178.80x = 7,771.36 × 2,058.24
  4. Step 4: Simplify right side
    5,178.80x = 15,995,324.01
  5. Step 5: Solve for x
    x = 15,995,324.01/5,178.80
  6. Step 6: Final answer
    x = 3,088.62

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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.