Home / 2,101,869.90-2,900,794.77-1,286,612.34

Finding the Fourth Proportional to 2,101,869.90, 2,900,794.77 and 1,286,612.34

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Solution

The fourth proportional to 2,101,869.90, 2,900,794.77 and 1,286,612.34 is: 1,775,656.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,101,869.90 : 2,900,794.77 = 1,286,612.34 : x
  2. Step 2: Convert to fraction form
    2,101,869.90/2,900,794.77 = 1,286,612.34/x
  3. Step 3: Cross multiply
    2,101,869.90x = 2,900,794.77 × 1,286,612.34
  4. Step 4: Simplify right side
    2,101,869.90x = 3,732,198,346,889.46
  5. Step 5: Solve for x
    x = 3,732,198,346,889.46/2,101,869.90
  6. Step 6: Final answer
    x = 1,775,656.21

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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.