Home / 3,158.63-4,358.91-1,742.28

Finding the Fourth Proportional to 3,158.63, 4,358.91 and 1,742.28

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Solution

The fourth proportional to 3,158.63, 4,358.91 and 1,742.28 is: 2,404.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,158.63 : 4,358.91 = 1,742.28 : x
  2. Step 2: Convert to fraction form
    3,158.63/4,358.91 = 1,742.28/x
  3. Step 3: Cross multiply
    3,158.63x = 4,358.91 × 1,742.28
  4. Step 4: Simplify right side
    3,158.63x = 7,594,431.90
  5. Step 5: Solve for x
    x = 7,594,431.90/3,158.63
  6. Step 6: Final answer
    x = 2,404.34

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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.