Home / 2,126,337.40-3,191,838.90-1,328,519.80

Finding the Fourth Proportional to 2,126,337.40, 3,191,838.90 and 1,328,519.80

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Solution

The fourth proportional to 2,126,337.40, 3,191,838.90 and 1,328,519.80 is: 1,994,237.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,126,337.40 : 3,191,838.90 = 1,328,519.80 : x
  2. Step 2: Convert to fraction form
    2,126,337.40/3,191,838.90 = 1,328,519.80/x
  3. Step 3: Cross multiply
    2,126,337.40x = 3,191,838.90 × 1,328,519.80
  4. Step 4: Simplify right side
    2,126,337.40x = 4,240,421,177,060.22
  5. Step 5: Solve for x
    x = 4,240,421,177,060.22/2,126,337.40
  6. Step 6: Final answer
    x = 1,994,237.22

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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.