Home / 4,707.36-7,056.86-1,787.72

Finding the Fourth Proportional to 4,707.36, 7,056.86 and 1,787.72

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Solution

The fourth proportional to 4,707.36, 7,056.86 and 1,787.72 is: 2,679.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,707.36 : 7,056.86 = 1,787.72 : x
  2. Step 2: Convert to fraction form
    4,707.36/7,056.86 = 1,787.72/x
  3. Step 3: Cross multiply
    4,707.36x = 7,056.86 × 1,787.72
  4. Step 4: Simplify right side
    4,707.36x = 12,615,645.54
  5. Step 5: Solve for x
    x = 12,615,645.54/4,707.36
  6. Step 6: Final answer
    x = 2,679.98

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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.