Home / 2,921,987.36-4,031,163.50-1,942,400.10

Finding the Fourth Proportional to 2,921,987.36, 4,031,163.50 and 1,942,400.10

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Solution

The fourth proportional to 2,921,987.36, 4,031,163.50 and 1,942,400.10 is: 2,679,728.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,921,987.36 : 4,031,163.50 = 1,942,400.10 : x
  2. Step 2: Convert to fraction form
    2,921,987.36/4,031,163.50 = 1,942,400.10/x
  3. Step 3: Cross multiply
    2,921,987.36x = 4,031,163.50 × 1,942,400.10
  4. Step 4: Simplify right side
    2,921,987.36x = 7,830,132,385,516.35
  5. Step 5: Solve for x
    x = 7,830,132,385,516.35/2,921,987.36
  6. Step 6: Final answer
    x = 2,679,728.36

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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.