Home / 1,784.68-2,677.28-552.20

Finding the Fourth Proportional to 1,784.68, 2,677.28 and 552.20

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Solution

The fourth proportional to 1,784.68, 2,677.28 and 552.20 is: 828.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,784.68 : 2,677.28 = 552.20 : x
  2. Step 2: Convert to fraction form
    1,784.68/2,677.28 = 552.20/x
  3. Step 3: Cross multiply
    1,784.68x = 2,677.28 × 552.20
  4. Step 4: Simplify right side
    1,784.68x = 1,478,387.91
  5. Step 5: Solve for x
    x = 1,478,387.91/1,784.68
  6. Step 6: Final answer
    x = 828.38

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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.