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Finding the Fourth Proportional to 3,148.65, 4,722.98 and 3,079.46

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Solution

The fourth proportional to 3,148.65, 4,722.98 and 3,079.46 is: 4,619.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,148.65 : 4,722.98 = 3,079.46 : x
  2. Step 2: Convert to fraction form
    3,148.65/4,722.98 = 3,079.46/x
  3. Step 3: Cross multiply
    3,148.65x = 4,722.98 × 3,079.46
  4. Step 4: Simplify right side
    3,148.65x = 14,544,224.40
  5. Step 5: Solve for x
    x = 14,544,224.40/3,148.65
  6. Step 6: Final answer
    x = 4,619.19

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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.