Home / 2,138,837.40-3,208,256.10-2,124,091.80

Finding the Fourth Proportional to 2,138,837.40, 3,208,256.10 and 2,124,091.80

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Solution

The fourth proportional to 2,138,837.40, 3,208,256.10 and 2,124,091.80 is: 3,186,137.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,138,837.40 : 3,208,256.10 = 2,124,091.80 : x
  2. Step 2: Convert to fraction form
    2,138,837.40/3,208,256.10 = 2,124,091.80/x
  3. Step 3: Cross multiply
    2,138,837.40x = 3,208,256.10 × 2,124,091.80
  4. Step 4: Simplify right side
    2,138,837.40x = 6,814,630,474,309.98
  5. Step 5: Solve for x
    x = 6,814,630,474,309.98/2,138,837.40
  6. Step 6: Final answer
    x = 3,186,137.70

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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.