Home / 2,859.38-4,289.70-1,217.32

Finding the Fourth Proportional to 2,859.38, 4,289.70 and 1,217.32

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Solution

The fourth proportional to 2,859.38, 4,289.70 and 1,217.32 is: 1,826.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,859.38 : 4,289.70 = 1,217.32 : x
  2. Step 2: Convert to fraction form
    2,859.38/4,289.70 = 1,217.32/x
  3. Step 3: Cross multiply
    2,859.38x = 4,289.70 × 1,217.32
  4. Step 4: Simplify right side
    2,859.38x = 5,221,937.60
  5. Step 5: Solve for x
    x = 5,221,937.60/2,859.38
  6. Step 6: Final answer
    x = 1,826.25

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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.