Home / 1,770.14-2,442.81-984.20

Finding the Fourth Proportional to 1,770.14, 2,442.81 and 984.20

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Solution

The fourth proportional to 1,770.14, 2,442.81 and 984.20 is: 1,358.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,770.14 : 2,442.81 = 984.20 : x
  2. Step 2: Convert to fraction form
    1,770.14/2,442.81 = 984.20/x
  3. Step 3: Cross multiply
    1,770.14x = 2,442.81 × 984.20
  4. Step 4: Simplify right side
    1,770.14x = 2,404,213.60
  5. Step 5: Solve for x
    x = 2,404,213.60/1,770.14
  6. Step 6: Final answer
    x = 1,358.21

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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.