Home / 2,647.28-3,653.26-1,717.40

Finding the Fourth Proportional to 2,647.28, 3,653.26 and 1,717.40

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Solution

The fourth proportional to 2,647.28, 3,653.26 and 1,717.40 is: 2,370.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,647.28 : 3,653.26 = 1,717.40 : x
  2. Step 2: Convert to fraction form
    2,647.28/3,653.26 = 1,717.40/x
  3. Step 3: Cross multiply
    2,647.28x = 3,653.26 × 1,717.40
  4. Step 4: Simplify right side
    2,647.28x = 6,274,108.72
  5. Step 5: Solve for x
    x = 6,274,108.72/2,647.28
  6. Step 6: Final answer
    x = 2,370.02

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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.