Home / 1,484.10-2,226.02-388.40

Finding the Fourth Proportional to 1,484.10, 2,226.02 and 388.40

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Solution

The fourth proportional to 1,484.10, 2,226.02 and 388.40 is: 582.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,484.10 : 2,226.02 = 388.40 : x
  2. Step 2: Convert to fraction form
    1,484.10/2,226.02 = 388.40/x
  3. Step 3: Cross multiply
    1,484.10x = 2,226.02 × 388.40
  4. Step 4: Simplify right side
    1,484.10x = 864,573.10
  5. Step 5: Solve for x
    x = 864,573.10/1,484.10
  6. Step 6: Final answer
    x = 582.56

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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.