Home / 1,770.12-2,442.90-984.24

Finding the Fourth Proportional to 1,770.12, 2,442.90 and 984.24

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Solution

The fourth proportional to 1,770.12, 2,442.90 and 984.24 is: 1,358.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,770.12 : 2,442.90 = 984.24 : x
  2. Step 2: Convert to fraction form
    1,770.12/2,442.90 = 984.24/x
  3. Step 3: Cross multiply
    1,770.12x = 2,442.90 × 984.24
  4. Step 4: Simplify right side
    1,770.12x = 2,404,399.90
  5. Step 5: Solve for x
    x = 2,404,399.90/1,770.12
  6. Step 6: Final answer
    x = 1,358.33

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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.