Home / 2,178.78-3,263.13-1,746.30

Finding the Fourth Proportional to 2,178.78, 3,263.13 and 1,746.30

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Solution

The fourth proportional to 2,178.78, 3,263.13 and 1,746.30 is: 2,615.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,178.78 : 3,263.13 = 1,746.30 : x
  2. Step 2: Convert to fraction form
    2,178.78/3,263.13 = 1,746.30/x
  3. Step 3: Cross multiply
    2,178.78x = 3,263.13 × 1,746.30
  4. Step 4: Simplify right side
    2,178.78x = 5,698,403.92
  5. Step 5: Solve for x
    x = 5,698,403.92/2,178.78
  6. Step 6: Final answer
    x = 2,615.41

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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.