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Finding the Fourth Proportional to 6,707.85, 10,058.53 and 2,811.21

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Solution

The fourth proportional to 6,707.85, 10,058.53 and 2,811.21 is: 4,215.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,707.85 : 10,058.53 = 2,811.21 : x
  2. Step 2: Convert to fraction form
    6,707.85/10,058.53 = 2,811.21/x
  3. Step 3: Cross multiply
    6,707.85x = 10,058.53 × 2,811.21
  4. Step 4: Simplify right side
    6,707.85x = 28,276,640.12
  5. Step 5: Solve for x
    x = 28,276,640.12/6,707.85
  6. Step 6: Final answer
    x = 4,215.46

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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.