Home / 2,175,893.40-3,003,163.02-1,390,456.92

Finding the Fourth Proportional to 2,175,893.40, 3,003,163.02 and 1,390,456.92

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Solution

The fourth proportional to 2,175,893.40, 3,003,163.02 and 1,390,456.92 is: 1,919,105.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,175,893.40 : 3,003,163.02 = 1,390,456.92 : x
  2. Step 2: Convert to fraction form
    2,175,893.40/3,003,163.02 = 1,390,456.92/x
  3. Step 3: Cross multiply
    2,175,893.40x = 3,003,163.02 × 1,390,456.92
  4. Step 4: Simplify right side
    2,175,893.40x = 4,175,768,803,047.10
  5. Step 5: Solve for x
    x = 4,175,768,803,047.10/2,175,893.40
  6. Step 6: Final answer
    x = 1,919,105.41

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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.