Home / 7,288.72-10,058.79-4,102.90

Finding the Fourth Proportional to 7,288.72, 10,058.79 and 4,102.90

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Solution

The fourth proportional to 7,288.72, 10,058.79 and 4,102.90 is: 5,662.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,288.72 : 10,058.79 = 4,102.90 : x
  2. Step 2: Convert to fraction form
    7,288.72/10,058.79 = 4,102.90/x
  3. Step 3: Cross multiply
    7,288.72x = 10,058.79 × 4,102.90
  4. Step 4: Simplify right side
    7,288.72x = 41,270,209.49
  5. Step 5: Solve for x
    x = 41,270,209.49/7,288.72
  6. Step 6: Final answer
    x = 5,662.20

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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.