Home / 1,962.42-2,708.24-1,216.77

Finding the Fourth Proportional to 1,962.42, 2,708.24 and 1,216.77

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Solution

The fourth proportional to 1,962.42, 2,708.24 and 1,216.77 is: 1,679.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,962.42 : 2,708.24 = 1,216.77 : x
  2. Step 2: Convert to fraction form
    1,962.42/2,708.24 = 1,216.77/x
  3. Step 3: Cross multiply
    1,962.42x = 2,708.24 × 1,216.77
  4. Step 4: Simplify right side
    1,962.42x = 3,295,299.10
  5. Step 5: Solve for x
    x = 3,295,299.10/1,962.42
  6. Step 6: Final answer
    x = 1,679.20

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1.5x scale

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.