Home / 1,158.93-1,738.02-389.25

Finding the Fourth Proportional to 1,158.93, 1,738.02 and 389.25

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Solution

The fourth proportional to 1,158.93, 1,738.02 and 389.25 is: 583.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,158.93 : 1,738.02 = 389.25 : x
  2. Step 2: Convert to fraction form
    1,158.93/1,738.02 = 389.25/x
  3. Step 3: Cross multiply
    1,158.93x = 1,738.02 × 389.25
  4. Step 4: Simplify right side
    1,158.93x = 676,524.29
  5. Step 5: Solve for x
    x = 676,524.29/1,158.93
  6. Step 6: Final answer
    x = 583.75

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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.