Home / 4,139.46-6,207.71-1,640.07

Finding the Fourth Proportional to 4,139.46, 6,207.71 and 1,640.07

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Solution

The fourth proportional to 4,139.46, 6,207.71 and 1,640.07 is: 2,459.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,139.46 : 6,207.71 = 1,640.07 : x
  2. Step 2: Convert to fraction form
    4,139.46/6,207.71 = 1,640.07/x
  3. Step 3: Cross multiply
    4,139.46x = 6,207.71 × 1,640.07
  4. Step 4: Simplify right side
    4,139.46x = 10,181,070.74
  5. Step 5: Solve for x
    x = 10,181,070.74/4,139.46
  6. Step 6: Final answer
    x = 2,459.52

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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.