Home / 3,138.11-4,707.06-1,058.08

Finding the Fourth Proportional to 3,138.11, 4,707.06 and 1,058.08

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Solution

The fourth proportional to 3,138.11, 4,707.06 and 1,058.08 is: 1,587.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,138.11 : 4,707.06 = 1,058.08 : x
  2. Step 2: Convert to fraction form
    3,138.11/4,707.06 = 1,058.08/x
  3. Step 3: Cross multiply
    3,138.11x = 4,707.06 × 1,058.08
  4. Step 4: Simplify right side
    3,138.11x = 4,980,446.04
  5. Step 5: Solve for x
    x = 4,980,446.04/3,138.11
  6. Step 6: Final answer
    x = 1,587.08

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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.