Home / 1,358.42-2,035.35-1,307.86

Finding the Fourth Proportional to 1,358.42, 2,035.35 and 1,307.86

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Solution

The fourth proportional to 1,358.42, 2,035.35 and 1,307.86 is: 1,959.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,358.42 : 2,035.35 = 1,307.86 : x
  2. Step 2: Convert to fraction form
    1,358.42/2,035.35 = 1,307.86/x
  3. Step 3: Cross multiply
    1,358.42x = 2,035.35 × 1,307.86
  4. Step 4: Simplify right side
    1,358.42x = 2,661,952.85
  5. Step 5: Solve for x
    x = 2,661,952.85/1,358.42
  6. Step 6: Final answer
    x = 1,959.59

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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.