Home / 3,148.07-4,722.55-1,392.94

Finding the Fourth Proportional to 3,148.07, 4,722.55 and 1,392.94

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Solution

The fourth proportional to 3,148.07, 4,722.55 and 1,392.94 is: 2,089.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,148.07 : 4,722.55 = 1,392.94 : x
  2. Step 2: Convert to fraction form
    3,148.07/4,722.55 = 1,392.94/x
  3. Step 3: Cross multiply
    3,148.07x = 4,722.55 × 1,392.94
  4. Step 4: Simplify right side
    3,148.07x = 6,578,213.51
  5. Step 5: Solve for x
    x = 6,578,213.51/3,148.07
  6. Step 6: Final answer
    x = 2,089.60

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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.