Home / 1,254.30-1,885.14-1,119.48

Finding the Fourth Proportional to 1,254.30, 1,885.14 and 1,119.48

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Solution

The fourth proportional to 1,254.30, 1,885.14 and 1,119.48 is: 1,682.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,254.30 : 1,885.14 = 1,119.48 : x
  2. Step 2: Convert to fraction form
    1,254.30/1,885.14 = 1,119.48/x
  3. Step 3: Cross multiply
    1,254.30x = 1,885.14 × 1,119.48
  4. Step 4: Simplify right side
    1,254.30x = 2,110,376.53
  5. Step 5: Solve for x
    x = 2,110,376.53/1,254.30
  6. Step 6: Final answer
    x = 1,682.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.