Home / 3,111.04-4,289.04-2,445.28

Finding the Fourth Proportional to 3,111.04, 4,289.04 and 2,445.28

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Solution

The fourth proportional to 3,111.04, 4,289.04 and 2,445.28 is: 3,371.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,111.04 : 4,289.04 = 2,445.28 : x
  2. Step 2: Convert to fraction form
    3,111.04/4,289.04 = 2,445.28/x
  3. Step 3: Cross multiply
    3,111.04x = 4,289.04 × 2,445.28
  4. Step 4: Simplify right side
    3,111.04x = 10,487,903.73
  5. Step 5: Solve for x
    x = 10,487,903.73/3,111.04
  6. Step 6: Final answer
    x = 3,371.19

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1.5x scale

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.