Home / 2,708.48-4,060.56-1,720.28

Finding the Fourth Proportional to 2,708.48, 4,060.56 and 1,720.28

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Solution

The fourth proportional to 2,708.48, 4,060.56 and 1,720.28 is: 2,579.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,708.48 : 4,060.56 = 1,720.28 : x
  2. Step 2: Convert to fraction form
    2,708.48/4,060.56 = 1,720.28/x
  3. Step 3: Cross multiply
    2,708.48x = 4,060.56 × 1,720.28
  4. Step 4: Simplify right side
    2,708.48x = 6,985,300.16
  5. Step 5: Solve for x
    x = 6,985,300.16/2,708.48
  6. Step 6: Final answer
    x = 2,579.05

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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.