Home / 4,578.60-6,867.91-1,291.72

Finding the Fourth Proportional to 4,578.60, 6,867.91 and 1,291.72

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Solution

The fourth proportional to 4,578.60, 6,867.91 and 1,291.72 is: 1,937.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,578.60 : 6,867.91 = 1,291.72 : x
  2. Step 2: Convert to fraction form
    4,578.60/6,867.91 = 1,291.72/x
  3. Step 3: Cross multiply
    4,578.60x = 6,867.91 × 1,291.72
  4. Step 4: Simplify right side
    4,578.60x = 8,871,401.15
  5. Step 5: Solve for x
    x = 8,871,401.15/4,578.60
  6. Step 6: Final answer
    x = 1,937.58

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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.