Home / 1,477.26-2,215.20-552.60

Finding the Fourth Proportional to 1,477.26, 2,215.20 and 552.60

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Solution

The fourth proportional to 1,477.26, 2,215.20 and 552.60 is: 828.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,477.26 : 2,215.20 = 552.60 : x
  2. Step 2: Convert to fraction form
    1,477.26/2,215.20 = 552.60/x
  3. Step 3: Cross multiply
    1,477.26x = 2,215.20 × 552.60
  4. Step 4: Simplify right side
    1,477.26x = 1,224,119.52
  5. Step 5: Solve for x
    x = 1,224,119.52/1,477.26
  6. Step 6: Final answer
    x = 828.64

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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.