Home / 1,339.18-2,006.05-1,227.18

Finding the Fourth Proportional to 1,339.18, 2,006.05 and 1,227.18

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Solution

The fourth proportional to 1,339.18, 2,006.05 and 1,227.18 is: 1,838.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,339.18 : 2,006.05 = 1,227.18 : x
  2. Step 2: Convert to fraction form
    1,339.18/2,006.05 = 1,227.18/x
  3. Step 3: Cross multiply
    1,339.18x = 2,006.05 × 1,227.18
  4. Step 4: Simplify right side
    1,339.18x = 2,461,784.44
  5. Step 5: Solve for x
    x = 2,461,784.44/1,339.18
  6. Step 6: Final answer
    x = 1,838.28

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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.