Home / 3,831.70-5,746.08-1,491.40

Finding the Fourth Proportional to 3,831.70, 5,746.08 and 1,491.40

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Solution

The fourth proportional to 3,831.70, 5,746.08 and 1,491.40 is: 2,236.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,831.70 : 5,746.08 = 1,491.40 : x
  2. Step 2: Convert to fraction form
    3,831.70/5,746.08 = 1,491.40/x
  3. Step 3: Cross multiply
    3,831.70x = 5,746.08 × 1,491.40
  4. Step 4: Simplify right side
    3,831.70x = 8,569,703.71
  5. Step 5: Solve for x
    x = 8,569,703.71/3,831.70
  6. Step 6: Final answer
    x = 2,236.53

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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.