Home / 7,288.90-10,058.73-4,145.09

Finding the Fourth Proportional to 7,288.90, 10,058.73 and 4,145.09

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Solution

The fourth proportional to 7,288.90, 10,058.73 and 4,145.09 is: 5,720.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,288.90 : 10,058.73 = 4,145.09 : x
  2. Step 2: Convert to fraction form
    7,288.90/10,058.73 = 4,145.09/x
  3. Step 3: Cross multiply
    7,288.90x = 10,058.73 × 4,145.09
  4. Step 4: Simplify right side
    7,288.90x = 41,694,331.88
  5. Step 5: Solve for x
    x = 41,694,331.88/7,288.90
  6. Step 6: Final answer
    x = 5,720.25

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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.