Home / 5,058.90-7,589.16-1,938.78

Finding the Fourth Proportional to 5,058.90, 7,589.16 and 1,938.78

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Solution

The fourth proportional to 5,058.90, 7,589.16 and 1,938.78 is: 2,908.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,058.90 : 7,589.16 = 1,938.78 : x
  2. Step 2: Convert to fraction form
    5,058.90/7,589.16 = 1,938.78/x
  3. Step 3: Cross multiply
    5,058.90x = 7,589.16 × 1,938.78
  4. Step 4: Simplify right side
    5,058.90x = 14,713,711.62
  5. Step 5: Solve for x
    x = 14,713,711.62/5,058.90
  6. Step 6: Final answer
    x = 2,908.48

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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.