Home / 3,390.09-5,079.32-3,047.70

Finding the Fourth Proportional to 3,390.09, 5,079.32 and 3,047.70

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Solution

The fourth proportional to 3,390.09, 5,079.32 and 3,047.70 is: 4,566.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,390.09 : 5,079.32 = 3,047.70 : x
  2. Step 2: Convert to fraction form
    3,390.09/5,079.32 = 3,047.70/x
  3. Step 3: Cross multiply
    3,390.09x = 5,079.32 × 3,047.70
  4. Step 4: Simplify right side
    3,390.09x = 15,480,228.33
  5. Step 5: Solve for x
    x = 15,480,228.33/3,390.09
  6. Step 6: Final answer
    x = 4,566.32

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1.5x scale

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.