Home / 2,171,403.60-3,259,729.80-2,155,657.20

Finding the Fourth Proportional to 2,171,403.60, 3,259,729.80 and 2,155,657.20

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Solution

The fourth proportional to 2,171,403.60, 3,259,729.80 and 2,155,657.20 is: 3,236,091.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,171,403.60 : 3,259,729.80 = 2,155,657.20 : x
  2. Step 2: Convert to fraction form
    2,171,403.60/3,259,729.80 = 2,155,657.20/x
  3. Step 3: Cross multiply
    2,171,403.60x = 3,259,729.80 × 2,155,657.20
  4. Step 4: Simplify right side
    2,171,403.60x = 7,026,860,013,424.56
  5. Step 5: Solve for x
    x = 7,026,860,013,424.56/2,171,403.60
  6. Step 6: Final answer
    x = 3,236,091.17

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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.