Home / 1,347.14-1,860.09-1,086.32

Finding the Fourth Proportional to 1,347.14, 1,860.09 and 1,086.32

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Solution

The fourth proportional to 1,347.14, 1,860.09 and 1,086.32 is: 1,499.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,347.14 : 1,860.09 = 1,086.32 : x
  2. Step 2: Convert to fraction form
    1,347.14/1,860.09 = 1,086.32/x
  3. Step 3: Cross multiply
    1,347.14x = 1,860.09 × 1,086.32
  4. Step 4: Simplify right side
    1,347.14x = 2,020,652.97
  5. Step 5: Solve for x
    x = 2,020,652.97/1,347.14
  6. Step 6: Final answer
    x = 1,499.96

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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.