Home / 4,189.32-5,780.10-2,698.11

Finding the Fourth Proportional to 4,189.32, 5,780.10 and 2,698.11

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Solution

The fourth proportional to 4,189.32, 5,780.10 and 2,698.11 is: 3,722.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,189.32 : 5,780.10 = 2,698.11 : x
  2. Step 2: Convert to fraction form
    4,189.32/5,780.10 = 2,698.11/x
  3. Step 3: Cross multiply
    4,189.32x = 5,780.10 × 2,698.11
  4. Step 4: Simplify right side
    4,189.32x = 15,595,345.61
  5. Step 5: Solve for x
    x = 15,595,345.61/4,189.32
  6. Step 6: Final answer
    x = 3,722.64

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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.