Home / 5,283.20-7,924.80-1,996.40

Finding the Fourth Proportional to 5,283.20, 7,924.80 and 1,996.40

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Solution

The fourth proportional to 5,283.20, 7,924.80 and 1,996.40 is: 2,994.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,283.20 : 7,924.80 = 1,996.40 : x
  2. Step 2: Convert to fraction form
    5,283.20/7,924.80 = 1,996.40/x
  3. Step 3: Cross multiply
    5,283.20x = 7,924.80 × 1,996.40
  4. Step 4: Simplify right side
    5,283.20x = 15,821,070.72
  5. Step 5: Solve for x
    x = 15,821,070.72/5,283.20
  6. Step 6: Final answer
    x = 2,994.60

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1.5x scale

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.