Home / 3,071.28-4,605.72-1,315.18

Finding the Fourth Proportional to 3,071.28, 4,605.72 and 1,315.18

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Solution

The fourth proportional to 3,071.28, 4,605.72 and 1,315.18 is: 1,972.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,071.28 : 4,605.72 = 1,315.18 : x
  2. Step 2: Convert to fraction form
    3,071.28/4,605.72 = 1,315.18/x
  3. Step 3: Cross multiply
    3,071.28x = 4,605.72 × 1,315.18
  4. Step 4: Simplify right side
    3,071.28x = 6,057,350.83
  5. Step 5: Solve for x
    x = 6,057,350.83/3,071.28
  6. Step 6: Final answer
    x = 1,972.26

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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.