Home / 5,129.16-7,077.83-3,004.40

Finding the Fourth Proportional to 5,129.16, 7,077.83 and 3,004.40

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Solution

The fourth proportional to 5,129.16, 7,077.83 and 3,004.40 is: 4,145.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,129.16 : 7,077.83 = 3,004.40 : x
  2. Step 2: Convert to fraction form
    5,129.16/7,077.83 = 3,004.40/x
  3. Step 3: Cross multiply
    5,129.16x = 7,077.83 × 3,004.40
  4. Step 4: Simplify right side
    5,129.16x = 21,264,582.04
  5. Step 5: Solve for x
    x = 21,264,582.04/5,129.16
  6. Step 6: Final answer
    x = 4,145.82

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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.