Home / 5,425.08-8,139.48-1,727.68

Finding the Fourth Proportional to 5,425.08, 8,139.48 and 1,727.68

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Solution

The fourth proportional to 5,425.08, 8,139.48 and 1,727.68 is: 2,592.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,425.08 : 8,139.48 = 1,727.68 : x
  2. Step 2: Convert to fraction form
    5,425.08/8,139.48 = 1,727.68/x
  3. Step 3: Cross multiply
    5,425.08x = 8,139.48 × 1,727.68
  4. Step 4: Simplify right side
    5,425.08x = 14,062,416.81
  5. Step 5: Solve for x
    x = 14,062,416.81/5,425.08
  6. Step 6: Final answer
    x = 2,592.11

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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.