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Finding the Fourth Proportional to 5,376.72, 8,019.12 and 4,722.91

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Solution

The fourth proportional to 5,376.72, 8,019.12 and 4,722.91 is: 7,043.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,376.72 : 8,019.12 = 4,722.91 : x
  2. Step 2: Convert to fraction form
    5,376.72/8,019.12 = 4,722.91/x
  3. Step 3: Cross multiply
    5,376.72x = 8,019.12 × 4,722.91
  4. Step 4: Simplify right side
    5,376.72x = 37,873,582.04
  5. Step 5: Solve for x
    x = 37,873,582.04/5,376.72
  6. Step 6: Final answer
    x = 7,043.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.