Home / 5,425.81-8,139.32-1,727.18

Finding the Fourth Proportional to 5,425.81, 8,139.32 and 1,727.18

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Solution

The fourth proportional to 5,425.81, 8,139.32 and 1,727.18 is: 2,590.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,425.81 : 8,139.32 = 1,727.18 : x
  2. Step 2: Convert to fraction form
    5,425.81/8,139.32 = 1,727.18/x
  3. Step 3: Cross multiply
    5,425.81x = 8,139.32 × 1,727.18
  4. Step 4: Simplify right side
    5,425.81x = 14,058,058.38
  5. Step 5: Solve for x
    x = 14,058,058.38/5,425.81
  6. Step 6: Final answer
    x = 2,590.96

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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.