Home / 5,117.28-7,676.01-1,831.20

Finding the Fourth Proportional to 5,117.28, 7,676.01 and 1,831.20

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Solution

The fourth proportional to 5,117.28, 7,676.01 and 1,831.20 is: 2,746.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,117.28 : 7,676.01 = 1,831.20 : x
  2. Step 2: Convert to fraction form
    5,117.28/7,676.01 = 1,831.20/x
  3. Step 3: Cross multiply
    5,117.28x = 7,676.01 × 1,831.20
  4. Step 4: Simplify right side
    5,117.28x = 14,056,309.51
  5. Step 5: Solve for x
    x = 14,056,309.51/5,117.28
  6. Step 6: Final answer
    x = 2,746.83

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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.