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Finding the Fourth Proportional to 7,058.58, 10,589.34 and 2,128.68

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Solution

The fourth proportional to 7,058.58, 10,589.34 and 2,128.68 is: 3,193.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,058.58 : 10,589.34 = 2,128.68 : x
  2. Step 2: Convert to fraction form
    7,058.58/10,589.34 = 2,128.68/x
  3. Step 3: Cross multiply
    7,058.58x = 10,589.34 × 2,128.68
  4. Step 4: Simplify right side
    7,058.58x = 22,541,316.27
  5. Step 5: Solve for x
    x = 22,541,316.27/7,058.58
  6. Step 6: Final answer
    x = 3,193.46

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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.