Home / 4,838.72-7,247.54-2,990.30

Finding the Fourth Proportional to 4,838.72, 7,247.54 and 2,990.30

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Solution

The fourth proportional to 4,838.72, 7,247.54 and 2,990.30 is: 4,478.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,838.72 : 7,247.54 = 2,990.30 : x
  2. Step 2: Convert to fraction form
    4,838.72/7,247.54 = 2,990.30/x
  3. Step 3: Cross multiply
    4,838.72x = 7,247.54 × 2,990.30
  4. Step 4: Simplify right side
    4,838.72x = 21,672,318.86
  5. Step 5: Solve for x
    x = 21,672,318.86/4,838.72
  6. Step 6: Final answer
    x = 4,478.94

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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.