Home / 2,173.36-3,260.16-712.72

Finding the Fourth Proportional to 2,173.36, 3,260.16 and 712.72

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Solution

The fourth proportional to 2,173.36, 3,260.16 and 712.72 is: 1,069.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,173.36 : 3,260.16 = 712.72 : x
  2. Step 2: Convert to fraction form
    2,173.36/3,260.16 = 712.72/x
  3. Step 3: Cross multiply
    2,173.36x = 3,260.16 × 712.72
  4. Step 4: Simplify right side
    2,173.36x = 2,323,581.24
  5. Step 5: Solve for x
    x = 2,323,581.24/2,173.36
  6. Step 6: Final answer
    x = 1,069.12

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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.