Home / 3,990.02-5,987.53-1,525.05

Finding the Fourth Proportional to 3,990.02, 5,987.53 and 1,525.05

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Solution

The fourth proportional to 3,990.02, 5,987.53 and 1,525.05 is: 2,288.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,990.02 : 5,987.53 = 1,525.05 : x
  2. Step 2: Convert to fraction form
    3,990.02/5,987.53 = 1,525.05/x
  3. Step 3: Cross multiply
    3,990.02x = 5,987.53 × 1,525.05
  4. Step 4: Simplify right side
    3,990.02x = 9,131,275.00
  5. Step 5: Solve for x
    x = 9,131,275.00/3,990.02
  6. Step 6: Final answer
    x = 2,288.53

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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.