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Finding the Fourth Proportional to 1,934.80, 2,901.36 and 701.80

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Solution

The fourth proportional to 1,934.80, 2,901.36 and 701.80 is: 1,052.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,934.80 : 2,901.36 = 701.80 : x
  2. Step 2: Convert to fraction form
    1,934.80/2,901.36 = 701.80/x
  3. Step 3: Cross multiply
    1,934.80x = 2,901.36 × 701.80
  4. Step 4: Simplify right side
    1,934.80x = 2,036,174.45
  5. Step 5: Solve for x
    x = 2,036,174.45/1,934.80
  6. Step 6: Final answer
    x = 1,052.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.