Home / 4,957.45-6,841.31-2,688.80

Finding the Fourth Proportional to 4,957.45, 6,841.31 and 2,688.80

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Solution

The fourth proportional to 4,957.45, 6,841.31 and 2,688.80 is: 3,710.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,957.45 : 6,841.31 = 2,688.80 : x
  2. Step 2: Convert to fraction form
    4,957.45/6,841.31 = 2,688.80/x
  3. Step 3: Cross multiply
    4,957.45x = 6,841.31 × 2,688.80
  4. Step 4: Simplify right side
    4,957.45x = 18,394,881.80
  5. Step 5: Solve for x
    x = 18,394,881.80/4,957.45
  6. Step 6: Final answer
    x = 3,710.55

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1.5x scale

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.