Home / 5,118.94-7,679.63-1,656.19

Finding the Fourth Proportional to 5,118.94, 7,679.63 and 1,656.19

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Solution

The fourth proportional to 5,118.94, 7,679.63 and 1,656.19 is: 2,484.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,118.94 : 7,679.63 = 1,656.19 : x
  2. Step 2: Convert to fraction form
    5,118.94/7,679.63 = 1,656.19/x
  3. Step 3: Cross multiply
    5,118.94x = 7,679.63 × 1,656.19
  4. Step 4: Simplify right side
    5,118.94x = 12,718,898.93
  5. Step 5: Solve for x
    x = 12,718,898.93/5,118.94
  6. Step 6: Final answer
    x = 2,484.68

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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.