Home / 4,990.02-7,485.99-1,527.78

Finding the Fourth Proportional to 4,990.02, 7,485.99 and 1,527.78

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Solution

The fourth proportional to 4,990.02, 7,485.99 and 1,527.78 is: 2,291.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,990.02 : 7,485.99 = 1,527.78 : x
  2. Step 2: Convert to fraction form
    4,990.02/7,485.99 = 1,527.78/x
  3. Step 3: Cross multiply
    4,990.02x = 7,485.99 × 1,527.78
  4. Step 4: Simplify right side
    4,990.02x = 11,436,945.80
  5. Step 5: Solve for x
    x = 11,436,945.80/4,990.02
  6. Step 6: Final answer
    x = 2,291.96

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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.