Home / 5,634.20-7,783.15-5,129.21

Finding the Fourth Proportional to 5,634.20, 7,783.15 and 5,129.21

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Solution

The fourth proportional to 5,634.20, 7,783.15 and 5,129.21 is: 7,085.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,634.20 : 7,783.15 = 5,129.21 : x
  2. Step 2: Convert to fraction form
    5,634.20/7,783.15 = 5,129.21/x
  3. Step 3: Cross multiply
    5,634.20x = 7,783.15 × 5,129.21
  4. Step 4: Simplify right side
    5,634.20x = 39,921,410.81
  5. Step 5: Solve for x
    x = 39,921,410.81/5,634.20
  6. Step 6: Final answer
    x = 7,085.55

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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.