Home / 1,922.12-2,652.77-1,331.63

Finding the Fourth Proportional to 1,922.12, 2,652.77 and 1,331.63

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Solution

The fourth proportional to 1,922.12, 2,652.77 and 1,331.63 is: 1,837.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,922.12 : 2,652.77 = 1,331.63 : x
  2. Step 2: Convert to fraction form
    1,922.12/2,652.77 = 1,331.63/x
  3. Step 3: Cross multiply
    1,922.12x = 2,652.77 × 1,331.63
  4. Step 4: Simplify right side
    1,922.12x = 3,532,518.08
  5. Step 5: Solve for x
    x = 3,532,518.08/1,922.12
  6. Step 6: Final answer
    x = 1,837.82

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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.