Home / 3,072.10-4,605.16-1,317.56

Finding the Fourth Proportional to 3,072.10, 4,605.16 and 1,317.56

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Solution

The fourth proportional to 3,072.10, 4,605.16 and 1,317.56 is: 1,975.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,072.10 : 4,605.16 = 1,317.56 : x
  2. Step 2: Convert to fraction form
    3,072.10/4,605.16 = 1,317.56/x
  3. Step 3: Cross multiply
    3,072.10x = 4,605.16 × 1,317.56
  4. Step 4: Simplify right side
    3,072.10x = 6,067,574.61
  5. Step 5: Solve for x
    x = 6,067,574.61/3,072.10
  6. Step 6: Final answer
    x = 1,975.06

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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.