Home / 1,339.68-1,846.02-1,206.66

Finding the Fourth Proportional to 1,339.68, 1,846.02 and 1,206.66

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Solution

The fourth proportional to 1,339.68, 1,846.02 and 1,206.66 is: 1,662.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,339.68 : 1,846.02 = 1,206.66 : x
  2. Step 2: Convert to fraction form
    1,339.68/1,846.02 = 1,206.66/x
  3. Step 3: Cross multiply
    1,339.68x = 1,846.02 × 1,206.66
  4. Step 4: Simplify right side
    1,339.68x = 2,227,518.49
  5. Step 5: Solve for x
    x = 2,227,518.49/1,339.68
  6. Step 6: Final answer
    x = 1,662.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.