Home / 5,268.90-7,907.42-1,984.98

Finding the Fourth Proportional to 5,268.90, 7,907.42 and 1,984.98

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Solution

The fourth proportional to 5,268.90, 7,907.42 and 1,984.98 is: 2,979.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,268.90 : 7,907.42 = 1,984.98 : x
  2. Step 2: Convert to fraction form
    5,268.90/7,907.42 = 1,984.98/x
  3. Step 3: Cross multiply
    5,268.90x = 7,907.42 × 1,984.98
  4. Step 4: Simplify right side
    5,268.90x = 15,696,070.55
  5. Step 5: Solve for x
    x = 15,696,070.55/5,268.90
  6. Step 6: Final answer
    x = 2,979.00

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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.