Home / 1,233.02-1,856.91-1,039.22

Finding the Fourth Proportional to 1,233.02, 1,856.91 and 1,039.22

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Solution

The fourth proportional to 1,233.02, 1,856.91 and 1,039.22 is: 1,565.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,233.02 : 1,856.91 = 1,039.22 : x
  2. Step 2: Convert to fraction form
    1,233.02/1,856.91 = 1,039.22/x
  3. Step 3: Cross multiply
    1,233.02x = 1,856.91 × 1,039.22
  4. Step 4: Simplify right side
    1,233.02x = 1,929,740.05
  5. Step 5: Solve for x
    x = 1,929,740.05/1,233.02
  6. Step 6: Final answer
    x = 1,565.06

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.