Home / 1,204.18-1,807.64-1,124.90

Finding the Fourth Proportional to 1,204.18, 1,807.64 and 1,124.90

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Solution

The fourth proportional to 1,204.18, 1,807.64 and 1,124.90 is: 1,688.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,204.18 : 1,807.64 = 1,124.90 : x
  2. Step 2: Convert to fraction form
    1,204.18/1,807.64 = 1,124.90/x
  3. Step 3: Cross multiply
    1,204.18x = 1,807.64 × 1,124.90
  4. Step 4: Simplify right side
    1,204.18x = 2,033,414.24
  5. Step 5: Solve for x
    x = 2,033,414.24/1,204.18
  6. Step 6: Final answer
    x = 1,688.63

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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.