Home / 4,920-6,769.08-4,254.72

Finding the Fourth Proportional to 4,920, 6,769.08 and 4,254.72

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Solution

The fourth proportional to 4,920, 6,769.08 and 4,254.72 is: 5,853.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,920 : 6,769.08 = 4,254.72 : x
  2. Step 2: Convert to fraction form
    4,920/6,769.08 = 4,254.72/x
  3. Step 3: Cross multiply
    4,920x = 6,769.08 × 4,254.72
  4. Step 4: Simplify right side
    4,920x = 28,800,540.06
  5. Step 5: Solve for x
    x = 28,800,540.06/4,920
  6. Step 6: Final answer
    x = 5,853.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.