Home / 3,128.49-4,689.64-2,017.23

Finding the Fourth Proportional to 3,128.49, 4,689.64 and 2,017.23

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Solution

The fourth proportional to 3,128.49, 4,689.64 and 2,017.23 is: 3,023.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,128.49 : 4,689.64 = 2,017.23 : x
  2. Step 2: Convert to fraction form
    3,128.49/4,689.64 = 2,017.23/x
  3. Step 3: Cross multiply
    3,128.49x = 4,689.64 × 2,017.23
  4. Step 4: Simplify right side
    3,128.49x = 9,460,082.50
  5. Step 5: Solve for x
    x = 9,460,082.50/3,128.49
  6. Step 6: Final answer
    x = 3,023.85

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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.