Home / 8,285.39-12,428.19-2,952.81

Finding the Fourth Proportional to 8,285.39, 12,428.19 and 2,952.81

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Solution

The fourth proportional to 8,285.39, 12,428.19 and 2,952.81 is: 4,429.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,285.39 : 12,428.19 = 2,952.81 : x
  2. Step 2: Convert to fraction form
    8,285.39/12,428.19 = 2,952.81/x
  3. Step 3: Cross multiply
    8,285.39x = 12,428.19 × 2,952.81
  4. Step 4: Simplify right side
    8,285.39x = 36,698,083.71
  5. Step 5: Solve for x
    x = 36,698,083.71/8,285.39
  6. Step 6: Final answer
    x = 4,429.25

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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.