Home / 3,535,785.72-4,879,254.78-2,161,431.18

Finding the Fourth Proportional to 3,535,785.72, 4,879,254.78 and 2,161,431.18

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Solution

The fourth proportional to 3,535,785.72, 4,879,254.78 and 2,161,431.18 is: 2,982,695.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,535,785.72 : 4,879,254.78 = 2,161,431.18 : x
  2. Step 2: Convert to fraction form
    3,535,785.72/4,879,254.78 = 2,161,431.18/x
  3. Step 3: Cross multiply
    3,535,785.72x = 4,879,254.78 × 2,161,431.18
  4. Step 4: Simplify right side
    3,535,785.72x = 10,546,173,416,656.04
  5. Step 5: Solve for x
    x = 10,546,173,416,656.04/3,535,785.72
  6. Step 6: Final answer
    x = 2,982,695.86

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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.