Home / 2,812.18-4,219.23-1,253.26

Finding the Fourth Proportional to 2,812.18, 4,219.23 and 1,253.26

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Solution

The fourth proportional to 2,812.18, 4,219.23 and 1,253.26 is: 1,880.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,812.18 : 4,219.23 = 1,253.26 : x
  2. Step 2: Convert to fraction form
    2,812.18/4,219.23 = 1,253.26/x
  3. Step 3: Cross multiply
    2,812.18x = 4,219.23 × 1,253.26
  4. Step 4: Simplify right side
    2,812.18x = 5,287,792.19
  5. Step 5: Solve for x
    x = 5,287,792.19/2,812.18
  6. Step 6: Final answer
    x = 1,880.32

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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.