Home / 1,718.43-2,580.47-1,630.78

Finding the Fourth Proportional to 1,718.43, 2,580.47 and 1,630.78

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Solution

The fourth proportional to 1,718.43, 2,580.47 and 1,630.78 is: 2,448.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,718.43 : 2,580.47 = 1,630.78 : x
  2. Step 2: Convert to fraction form
    1,718.43/2,580.47 = 1,630.78/x
  3. Step 3: Cross multiply
    1,718.43x = 2,580.47 × 1,630.78
  4. Step 4: Simplify right side
    1,718.43x = 4,208,180.31
  5. Step 5: Solve for x
    x = 4,208,180.31/1,718.43
  6. Step 6: Final answer
    x = 2,448.85

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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.