Home / 1,347.11-1,859.93-1,031.81

Finding the Fourth Proportional to 1,347.11, 1,859.93 and 1,031.81

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Solution

The fourth proportional to 1,347.11, 1,859.93 and 1,031.81 is: 1,424.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,347.11 : 1,859.93 = 1,031.81 : x
  2. Step 2: Convert to fraction form
    1,347.11/1,859.93 = 1,031.81/x
  3. Step 3: Cross multiply
    1,347.11x = 1,859.93 × 1,031.81
  4. Step 4: Simplify right side
    1,347.11x = 1,919,093.86
  5. Step 5: Solve for x
    x = 1,919,093.86/1,347.11
  6. Step 6: Final answer
    x = 1,424.61

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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.