Home / 2,648,975.40-3,969,380.70-1,971,880.20

Finding the Fourth Proportional to 2,648,975.40, 3,969,380.70 and 1,971,880.20

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Solution

The fourth proportional to 2,648,975.40, 3,969,380.70 and 1,971,880.20 is: 2,954,781.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,648,975.40 : 3,969,380.70 = 1,971,880.20 : x
  2. Step 2: Convert to fraction form
    2,648,975.40/3,969,380.70 = 1,971,880.20/x
  3. Step 3: Cross multiply
    2,648,975.40x = 3,969,380.70 × 1,971,880.20
  4. Step 4: Simplify right side
    2,648,975.40x = 7,827,143,208,592.14
  5. Step 5: Solve for x
    x = 7,827,143,208,592.14/2,648,975.40
  6. Step 6: Final answer
    x = 2,954,781.39

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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.