Home / 2,776.18-3,830.76-1,782.81

Finding the Fourth Proportional to 2,776.18, 3,830.76 and 1,782.81

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Solution

The fourth proportional to 2,776.18, 3,830.76 and 1,782.81 is: 2,460.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,776.18 : 3,830.76 = 1,782.81 : x
  2. Step 2: Convert to fraction form
    2,776.18/3,830.76 = 1,782.81/x
  3. Step 3: Cross multiply
    2,776.18x = 3,830.76 × 1,782.81
  4. Step 4: Simplify right side
    2,776.18x = 6,829,516.68
  5. Step 5: Solve for x
    x = 6,829,516.68/2,776.18
  6. Step 6: Final answer
    x = 2,460.04

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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.