Home / 5,831.51-8,742.40-2,905.79

Finding the Fourth Proportional to 5,831.51, 8,742.40 and 2,905.79

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Solution

The fourth proportional to 5,831.51, 8,742.40 and 2,905.79 is: 4,356.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,831.51 : 8,742.40 = 2,905.79 : x
  2. Step 2: Convert to fraction form
    5,831.51/8,742.40 = 2,905.79/x
  3. Step 3: Cross multiply
    5,831.51x = 8,742.40 × 2,905.79
  4. Step 4: Simplify right side
    5,831.51x = 25,403,578.50
  5. Step 5: Solve for x
    x = 25,403,578.50/5,831.51
  6. Step 6: Final answer
    x = 4,356.26

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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.