Home / 2,973.80-4,456.65-2,107.10

Finding the Fourth Proportional to 2,973.80, 4,456.65 and 2,107.10

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Solution

The fourth proportional to 2,973.80, 4,456.65 and 2,107.10 is: 3,157.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,973.80 : 4,456.65 = 2,107.10 : x
  2. Step 2: Convert to fraction form
    2,973.80/4,456.65 = 2,107.10/x
  3. Step 3: Cross multiply
    2,973.80x = 4,456.65 × 2,107.10
  4. Step 4: Simplify right side
    2,973.80x = 9,390,607.22
  5. Step 5: Solve for x
    x = 9,390,607.22/2,973.80
  6. Step 6: Final answer
    x = 3,157.78

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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.