Home / 4,578.28-6,868-1,291.63

Finding the Fourth Proportional to 4,578.28, 6,868 and 1,291.63

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Solution

The fourth proportional to 4,578.28, 6,868 and 1,291.63 is: 1,937.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,578.28 : 6,868 = 1,291.63 : x
  2. Step 2: Convert to fraction form
    4,578.28/6,868 = 1,291.63/x
  3. Step 3: Cross multiply
    4,578.28x = 6,868 × 1,291.63
  4. Step 4: Simplify right side
    4,578.28x = 8,870,914.84
  5. Step 5: Solve for x
    x = 8,870,914.84/4,578.28
  6. Step 6: Final answer
    x = 1,937.61

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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.