Home / 5,509.20-7,602.63-3,119.65

Finding the Fourth Proportional to 5,509.20, 7,602.63 and 3,119.65

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Solution

The fourth proportional to 5,509.20, 7,602.63 and 3,119.65 is: 4,305.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,509.20 : 7,602.63 = 3,119.65 : x
  2. Step 2: Convert to fraction form
    5,509.20/7,602.63 = 3,119.65/x
  3. Step 3: Cross multiply
    5,509.20x = 7,602.63 × 3,119.65
  4. Step 4: Simplify right side
    5,509.20x = 23,717,513.97
  5. Step 5: Solve for x
    x = 23,717,513.97/5,509.20
  6. Step 6: Final answer
    x = 4,305.08

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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.