Home / 3,216.48-4,435.60-1,957.72

Finding the Fourth Proportional to 3,216.48, 4,435.60 and 1,957.72

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Solution

The fourth proportional to 3,216.48, 4,435.60 and 1,957.72 is: 2,699.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,216.48 : 4,435.60 = 1,957.72 : x
  2. Step 2: Convert to fraction form
    3,216.48/4,435.60 = 1,957.72/x
  3. Step 3: Cross multiply
    3,216.48x = 4,435.60 × 1,957.72
  4. Step 4: Simplify right side
    3,216.48x = 8,683,662.83
  5. Step 5: Solve for x
    x = 8,683,662.83/3,216.48
  6. Step 6: Final answer
    x = 2,699.74

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.