Home / 5,124.27-7,686.68-1,661.25

Finding the Fourth Proportional to 5,124.27, 7,686.68 and 1,661.25

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Solution

The fourth proportional to 5,124.27, 7,686.68 and 1,661.25 is: 2,491.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,124.27 : 7,686.68 = 1,661.25 : x
  2. Step 2: Convert to fraction form
    5,124.27/7,686.68 = 1,661.25/x
  3. Step 3: Cross multiply
    5,124.27x = 7,686.68 × 1,661.25
  4. Step 4: Simplify right side
    5,124.27x = 12,769,488.84
  5. Step 5: Solve for x
    x = 12,769,488.84/5,124.27
  6. Step 6: Final answer
    x = 2,491.96

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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.