Home / 3,148.10-4,722.44-1,392.88

Finding the Fourth Proportional to 3,148.10, 4,722.44 and 1,392.88

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Solution

The fourth proportional to 3,148.10, 4,722.44 and 1,392.88 is: 2,089.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,148.10 : 4,722.44 = 1,392.88 : x
  2. Step 2: Convert to fraction form
    3,148.10/4,722.44 = 1,392.88/x
  3. Step 3: Cross multiply
    3,148.10x = 4,722.44 × 1,392.88
  4. Step 4: Simplify right side
    3,148.10x = 6,577,792.23
  5. Step 5: Solve for x
    x = 6,577,792.23/3,148.10
  6. Step 6: Final answer
    x = 2,089.45

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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.