Home / 4,140.45-6,210.68-1,218.69

Finding the Fourth Proportional to 4,140.45, 6,210.68 and 1,218.69

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Solution

The fourth proportional to 4,140.45, 6,210.68 and 1,218.69 is: 1,828.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,140.45 : 6,210.68 = 1,218.69 : x
  2. Step 2: Convert to fraction form
    4,140.45/6,210.68 = 1,218.69/x
  3. Step 3: Cross multiply
    4,140.45x = 6,210.68 × 1,218.69
  4. Step 4: Simplify right side
    4,140.45x = 7,568,887.52
  5. Step 5: Solve for x
    x = 7,568,887.52/4,140.45
  6. Step 6: Final answer
    x = 1,828.04

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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.