Home / 5,160.51-7,120.91-3,035.68

Finding the Fourth Proportional to 5,160.51, 7,120.91 and 3,035.68

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Solution

The fourth proportional to 5,160.51, 7,120.91 and 3,035.68 is: 4,188.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,160.51 : 7,120.91 = 3,035.68 : x
  2. Step 2: Convert to fraction form
    5,160.51/7,120.91 = 3,035.68/x
  3. Step 3: Cross multiply
    5,160.51x = 7,120.91 × 3,035.68
  4. Step 4: Simplify right side
    5,160.51x = 21,616,793.86
  5. Step 5: Solve for x
    x = 21,616,793.86/5,160.51
  6. Step 6: Final answer
    x = 4,188.89

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1.5x scale

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.