Home / 3,938,648.54-5,435,431.10-2,196,300.92

Finding the Fourth Proportional to 3,938,648.54, 5,435,431.10 and 2,196,300.92

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Solution

The fourth proportional to 3,938,648.54, 5,435,431.10 and 2,196,300.92 is: 3,030,948.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,938,648.54 : 5,435,431.10 = 2,196,300.92 : x
  2. Step 2: Convert to fraction form
    3,938,648.54/5,435,431.10 = 2,196,300.92/x
  3. Step 3: Cross multiply
    3,938,648.54x = 5,435,431.10 × 2,196,300.92
  4. Step 4: Simplify right side
    3,938,648.54x = 11,937,842,325,526.61
  5. Step 5: Solve for x
    x = 11,937,842,325,526.61/3,938,648.54
  6. Step 6: Final answer
    x = 3,030,948.87

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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.