Home / 2,605.04-3,907.76-756.18

Finding the Fourth Proportional to 2,605.04, 3,907.76 and 756.18

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Solution

The fourth proportional to 2,605.04, 3,907.76 and 756.18 is: 1,134.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,605.04 : 3,907.76 = 756.18 : x
  2. Step 2: Convert to fraction form
    2,605.04/3,907.76 = 756.18/x
  3. Step 3: Cross multiply
    2,605.04x = 3,907.76 × 756.18
  4. Step 4: Simplify right side
    2,605.04x = 2,954,969.96
  5. Step 5: Solve for x
    x = 2,954,969.96/2,605.04
  6. Step 6: Final answer
    x = 1,134.33

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1.5x scale

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.