Home / 1,770.19-2,442.90-984.49

Finding the Fourth Proportional to 1,770.19, 2,442.90 and 984.49

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Solution

The fourth proportional to 1,770.19, 2,442.90 and 984.49 is: 1,358.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,770.19 : 2,442.90 = 984.49 : x
  2. Step 2: Convert to fraction form
    1,770.19/2,442.90 = 984.49/x
  3. Step 3: Cross multiply
    1,770.19x = 2,442.90 × 984.49
  4. Step 4: Simplify right side
    1,770.19x = 2,405,010.62
  5. Step 5: Solve for x
    x = 2,405,010.62/1,770.19
  6. Step 6: Final answer
    x = 1,358.62

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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.