Home / 5,120.48-7,064.51-3,104.51

Finding the Fourth Proportional to 5,120.48, 7,064.51 and 3,104.51

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Solution

The fourth proportional to 5,120.48, 7,064.51 and 3,104.51 is: 4,283.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,120.48 : 7,064.51 = 3,104.51 : x
  2. Step 2: Convert to fraction form
    5,120.48/7,064.51 = 3,104.51/x
  3. Step 3: Cross multiply
    5,120.48x = 7,064.51 × 3,104.51
  4. Step 4: Simplify right side
    5,120.48x = 21,931,791.10
  5. Step 5: Solve for x
    x = 21,931,791.10/5,120.48
  6. Step 6: Final answer
    x = 4,283.16

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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.