Home / 3,900,272.46-5,382,345.12-2,181,391.70

Finding the Fourth Proportional to 3,900,272.46, 5,382,345.12 and 2,181,391.70

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Solution

The fourth proportional to 3,900,272.46, 5,382,345.12 and 2,181,391.70 is: 3,010,303.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,900,272.46 : 5,382,345.12 = 2,181,391.70 : x
  2. Step 2: Convert to fraction form
    3,900,272.46/5,382,345.12 = 2,181,391.70/x
  3. Step 3: Cross multiply
    3,900,272.46x = 5,382,345.12 × 2,181,391.70
  4. Step 4: Simplify right side
    3,900,272.46x = 11,741,002,971,303.51
  5. Step 5: Solve for x
    x = 11,741,002,971,303.51/3,900,272.46
  6. Step 6: Final answer
    x = 3,010,303.28

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Double scale
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1.5x scale

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.