Home / 1,289.18-1,934.08-704.03

Finding the Fourth Proportional to 1,289.18, 1,934.08 and 704.03

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Solution

The fourth proportional to 1,289.18, 1,934.08 and 704.03 is: 1,056.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,289.18 : 1,934.08 = 704.03 : x
  2. Step 2: Convert to fraction form
    1,289.18/1,934.08 = 704.03/x
  3. Step 3: Cross multiply
    1,289.18x = 1,934.08 × 704.03
  4. Step 4: Simplify right side
    1,289.18x = 1,361,638.91
  5. Step 5: Solve for x
    x = 1,361,638.91/1,289.18
  6. Step 6: Final answer
    x = 1,056.20

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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.