Home / 3,127.16-4,315.36-1,782.96

Finding the Fourth Proportional to 3,127.16, 4,315.36 and 1,782.96

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Solution

The fourth proportional to 3,127.16, 4,315.36 and 1,782.96 is: 2,460.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,127.16 : 4,315.36 = 1,782.96 : x
  2. Step 2: Convert to fraction form
    3,127.16/4,315.36 = 1,782.96/x
  3. Step 3: Cross multiply
    3,127.16x = 4,315.36 × 1,782.96
  4. Step 4: Simplify right side
    3,127.16x = 7,694,114.27
  5. Step 5: Solve for x
    x = 7,694,114.27/3,127.16
  6. Step 6: Final answer
    x = 2,460.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.