Home / 2,480.02-3,720.74-1,020.20

Finding the Fourth Proportional to 2,480.02, 3,720.74 and 1,020.20

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Solution

The fourth proportional to 2,480.02, 3,720.74 and 1,020.20 is: 1,530.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,480.02 : 3,720.74 = 1,020.20 : x
  2. Step 2: Convert to fraction form
    2,480.02/3,720.74 = 1,020.20/x
  3. Step 3: Cross multiply
    2,480.02x = 3,720.74 × 1,020.20
  4. Step 4: Simplify right side
    2,480.02x = 3,795,875.24
  5. Step 5: Solve for x
    x = 3,795,875.24/2,480.02
  6. Step 6: Final answer
    x = 1,530.58

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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.