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Finding the Fourth Proportional to 1,339.58, 1,849.34 and 1,234.19

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Solution

The fourth proportional to 1,339.58, 1,849.34 and 1,234.19 is: 1,703.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,339.58 : 1,849.34 = 1,234.19 : x
  2. Step 2: Convert to fraction form
    1,339.58/1,849.34 = 1,234.19/x
  3. Step 3: Cross multiply
    1,339.58x = 1,849.34 × 1,234.19
  4. Step 4: Simplify right side
    1,339.58x = 2,282,430.76
  5. Step 5: Solve for x
    x = 2,282,430.76/1,339.58
  6. Step 6: Final answer
    x = 1,703.84

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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.