Home / 3,148.80-4,721.14-1,762.29

Finding the Fourth Proportional to 3,148.80, 4,721.14 and 1,762.29

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Solution

The fourth proportional to 3,148.80, 4,721.14 and 1,762.29 is: 2,642.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,148.80 : 4,721.14 = 1,762.29 : x
  2. Step 2: Convert to fraction form
    3,148.80/4,721.14 = 1,762.29/x
  3. Step 3: Cross multiply
    3,148.80x = 4,721.14 × 1,762.29
  4. Step 4: Simplify right side
    3,148.80x = 8,320,017.81
  5. Step 5: Solve for x
    x = 8,320,017.81/3,148.80
  6. Step 6: Final answer
    x = 2,642.28

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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.