Home / 1,534.67-2,116.90-1,338.65

Finding the Fourth Proportional to 1,534.67, 2,116.90 and 1,338.65

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Solution

The fourth proportional to 1,534.67, 2,116.90 and 1,338.65 is: 1,846.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,534.67 : 2,116.90 = 1,338.65 : x
  2. Step 2: Convert to fraction form
    1,534.67/2,116.90 = 1,338.65/x
  3. Step 3: Cross multiply
    1,534.67x = 2,116.90 × 1,338.65
  4. Step 4: Simplify right side
    1,534.67x = 2,833,788.19
  5. Step 5: Solve for x
    x = 2,833,788.19/1,534.67
  6. Step 6: Final answer
    x = 1,846.51

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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.