Home / 1,772.12-2,447.34-1,329.32

Finding the Fourth Proportional to 1,772.12, 2,447.34 and 1,329.32

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Solution

The fourth proportional to 1,772.12, 2,447.34 and 1,329.32 is: 1,835.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,772.12 : 2,447.34 = 1,329.32 : x
  2. Step 2: Convert to fraction form
    1,772.12/2,447.34 = 1,329.32/x
  3. Step 3: Cross multiply
    1,772.12x = 2,447.34 × 1,329.32
  4. Step 4: Simplify right side
    1,772.12x = 3,253,298.01
  5. Step 5: Solve for x
    x = 3,253,298.01/1,772.12
  6. Step 6: Final answer
    x = 1,835.82

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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.