Home / 4,988.02-7,481.94-1,290.22

Finding the Fourth Proportional to 4,988.02, 7,481.94 and 1,290.22

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Solution

The fourth proportional to 4,988.02, 7,481.94 and 1,290.22 is: 1,935.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,988.02 : 7,481.94 = 1,290.22 : x
  2. Step 2: Convert to fraction form
    4,988.02/7,481.94 = 1,290.22/x
  3. Step 3: Cross multiply
    4,988.02x = 7,481.94 × 1,290.22
  4. Step 4: Simplify right side
    4,988.02x = 9,653,348.63
  5. Step 5: Solve for x
    x = 9,653,348.63/4,988.02
  6. Step 6: Final answer
    x = 1,935.31

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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.