Home / 1,125.02-1,552.08-830.96

Finding the Fourth Proportional to 1,125.02, 1,552.08 and 830.96

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Solution

The fourth proportional to 1,125.02, 1,552.08 and 830.96 is: 1,146.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,125.02 : 1,552.08 = 830.96 : x
  2. Step 2: Convert to fraction form
    1,125.02/1,552.08 = 830.96/x
  3. Step 3: Cross multiply
    1,125.02x = 1,552.08 × 830.96
  4. Step 4: Simplify right side
    1,125.02x = 1,289,716.40
  5. Step 5: Solve for x
    x = 1,289,716.40/1,125.02
  6. Step 6: Final answer
    x = 1,146.39

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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.