Home / 2,355.40-3,527.80-1,831.32

Finding the Fourth Proportional to 2,355.40, 3,527.80 and 1,831.32

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Solution

The fourth proportional to 2,355.40, 3,527.80 and 1,831.32 is: 2,742.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,355.40 : 3,527.80 = 1,831.32 : x
  2. Step 2: Convert to fraction form
    2,355.40/3,527.80 = 1,831.32/x
  3. Step 3: Cross multiply
    2,355.40x = 3,527.80 × 1,831.32
  4. Step 4: Simplify right side
    2,355.40x = 6,460,530.70
  5. Step 5: Solve for x
    x = 6,460,530.70/2,355.40
  6. Step 6: Final answer
    x = 2,742.86

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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.