Home / 1,900.64-2,623.22-1,115.14

Finding the Fourth Proportional to 1,900.64, 2,623.22 and 1,115.14

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Solution

The fourth proportional to 1,900.64, 2,623.22 and 1,115.14 is: 1,539.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,900.64 : 2,623.22 = 1,115.14 : x
  2. Step 2: Convert to fraction form
    1,900.64/2,623.22 = 1,115.14/x
  3. Step 3: Cross multiply
    1,900.64x = 2,623.22 × 1,115.14
  4. Step 4: Simplify right side
    1,900.64x = 2,925,257.55
  5. Step 5: Solve for x
    x = 2,925,257.55/1,900.64
  6. Step 6: Final answer
    x = 1,539.09

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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.