Home / 3,539.71-4,884.41-2,123.45

Finding the Fourth Proportional to 3,539.71, 4,884.41 and 2,123.45

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Solution

The fourth proportional to 3,539.71, 4,884.41 and 2,123.45 is: 2,930.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,539.71 : 4,884.41 = 2,123.45 : x
  2. Step 2: Convert to fraction form
    3,539.71/4,884.41 = 2,123.45/x
  3. Step 3: Cross multiply
    3,539.71x = 4,884.41 × 2,123.45
  4. Step 4: Simplify right side
    3,539.71x = 10,371,800.41
  5. Step 5: Solve for x
    x = 10,371,800.41/3,539.71
  6. Step 6: Final answer
    x = 2,930.13

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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.