Home / 2,579,429.80-3,869,144.70-2,122,784.20

Finding the Fourth Proportional to 2,579,429.80, 3,869,144.70 and 2,122,784.20

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Solution

The fourth proportional to 2,579,429.80, 3,869,144.70 and 2,122,784.20 is: 3,184,176.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,579,429.80 : 3,869,144.70 = 2,122,784.20 : x
  2. Step 2: Convert to fraction form
    2,579,429.80/3,869,144.70 = 2,122,784.20/x
  3. Step 3: Cross multiply
    2,579,429.80x = 3,869,144.70 × 2,122,784.20
  4. Step 4: Simplify right side
    2,579,429.80x = 8,213,359,236,673.74
  5. Step 5: Solve for x
    x = 8,213,359,236,673.74/2,579,429.80
  6. Step 6: Final answer
    x = 3,184,176.30

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Double scale
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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.