Home / 4,139.64-6,210.66-1,217.95

Finding the Fourth Proportional to 4,139.64, 6,210.66 and 1,217.95

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Solution

The fourth proportional to 4,139.64, 6,210.66 and 1,217.95 is: 1,827.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,139.64 : 6,210.66 = 1,217.95 : x
  2. Step 2: Convert to fraction form
    4,139.64/6,210.66 = 1,217.95/x
  3. Step 3: Cross multiply
    4,139.64x = 6,210.66 × 1,217.95
  4. Step 4: Simplify right side
    4,139.64x = 7,564,273.35
  5. Step 5: Solve for x
    x = 7,564,273.35/4,139.64
  6. Step 6: Final answer
    x = 1,827.28

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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.