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Finding the Fourth Proportional to 1,769.93, 2,442.27 and 984.14

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Solution

The fourth proportional to 1,769.93, 2,442.27 and 984.14 is: 1,357.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,769.93 : 2,442.27 = 984.14 : x
  2. Step 2: Convert to fraction form
    1,769.93/2,442.27 = 984.14/x
  3. Step 3: Cross multiply
    1,769.93x = 2,442.27 × 984.14
  4. Step 4: Simplify right side
    1,769.93x = 2,403,535.60
  5. Step 5: Solve for x
    x = 2,403,535.60/1,769.93
  6. Step 6: Final answer
    x = 1,357.98

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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.