Home / 5,625.40-7,763.12-3,107.51

Finding the Fourth Proportional to 5,625.40, 7,763.12 and 3,107.51

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Solution

The fourth proportional to 5,625.40, 7,763.12 and 3,107.51 is: 4,288.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,625.40 : 7,763.12 = 3,107.51 : x
  2. Step 2: Convert to fraction form
    5,625.40/7,763.12 = 3,107.51/x
  3. Step 3: Cross multiply
    5,625.40x = 7,763.12 × 3,107.51
  4. Step 4: Simplify right side
    5,625.40x = 24,123,973.03
  5. Step 5: Solve for x
    x = 24,123,973.03/5,625.40
  6. Step 6: Final answer
    x = 4,288.40

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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.