Home / 1,520.02-2,280.36-480.33

Finding the Fourth Proportional to 1,520.02, 2,280.36 and 480.33

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Solution

The fourth proportional to 1,520.02, 2,280.36 and 480.33 is: 720.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,520.02 : 2,280.36 = 480.33 : x
  2. Step 2: Convert to fraction form
    1,520.02/2,280.36 = 480.33/x
  3. Step 3: Cross multiply
    1,520.02x = 2,280.36 × 480.33
  4. Step 4: Simplify right side
    1,520.02x = 1,095,311.52
  5. Step 5: Solve for x
    x = 1,095,311.52/1,520.02
  6. Step 6: Final answer
    x = 720.59

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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.