Home / 3,138.89-4,706.66-1,058.19

Finding the Fourth Proportional to 3,138.89, 4,706.66 and 1,058.19

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Solution

The fourth proportional to 3,138.89, 4,706.66 and 1,058.19 is: 1,586.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,138.89 : 4,706.66 = 1,058.19 : x
  2. Step 2: Convert to fraction form
    3,138.89/4,706.66 = 1,058.19/x
  3. Step 3: Cross multiply
    3,138.89x = 4,706.66 × 1,058.19
  4. Step 4: Simplify right side
    3,138.89x = 4,980,535.25
  5. Step 5: Solve for x
    x = 4,980,535.25/3,138.89
  6. Step 6: Final answer
    x = 1,586.72

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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.