Home / 2,990.57-4,486.46-1,042.25

Finding the Fourth Proportional to 2,990.57, 4,486.46 and 1,042.25

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Solution

The fourth proportional to 2,990.57, 4,486.46 and 1,042.25 is: 1,563.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,990.57 : 4,486.46 = 1,042.25 : x
  2. Step 2: Convert to fraction form
    2,990.57/4,486.46 = 1,042.25/x
  3. Step 3: Cross multiply
    2,990.57x = 4,486.46 × 1,042.25
  4. Step 4: Simplify right side
    2,990.57x = 4,676,012.94
  5. Step 5: Solve for x
    x = 4,676,012.94/2,990.57
  6. Step 6: Final answer
    x = 1,563.59

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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.