Home / 5,616.40-8,424.61-3,119.12

Finding the Fourth Proportional to 5,616.40, 8,424.61 and 3,119.12

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Solution

The fourth proportional to 5,616.40, 8,424.61 and 3,119.12 is: 4,678.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,616.40 : 8,424.61 = 3,119.12 : x
  2. Step 2: Convert to fraction form
    5,616.40/8,424.61 = 3,119.12/x
  3. Step 3: Cross multiply
    5,616.40x = 8,424.61 × 3,119.12
  4. Step 4: Simplify right side
    5,616.40x = 26,277,382.81
  5. Step 5: Solve for x
    x = 26,277,382.81/5,616.40
  6. Step 6: Final answer
    x = 4,678.69

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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.