Home / 4,990.61-7,478.97-2,522.55

Finding the Fourth Proportional to 4,990.61, 7,478.97 and 2,522.55

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Solution

The fourth proportional to 4,990.61, 7,478.97 and 2,522.55 is: 3,780.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,990.61 : 7,478.97 = 2,522.55 : x
  2. Step 2: Convert to fraction form
    4,990.61/7,478.97 = 2,522.55/x
  3. Step 3: Cross multiply
    4,990.61x = 7,478.97 × 2,522.55
  4. Step 4: Simplify right side
    4,990.61x = 18,866,075.77
  5. Step 5: Solve for x
    x = 18,866,075.77/4,990.61
  6. Step 6: Final answer
    x = 3,780.31

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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.