Home / 4,390.64-6,580.11-1,922.78

Finding the Fourth Proportional to 4,390.64, 6,580.11 and 1,922.78

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Solution

The fourth proportional to 4,390.64, 6,580.11 and 1,922.78 is: 2,881.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,390.64 : 6,580.11 = 1,922.78 : x
  2. Step 2: Convert to fraction form
    4,390.64/6,580.11 = 1,922.78/x
  3. Step 3: Cross multiply
    4,390.64x = 6,580.11 × 1,922.78
  4. Step 4: Simplify right side
    4,390.64x = 12,652,071.01
  5. Step 5: Solve for x
    x = 12,652,071.01/4,390.64
  6. Step 6: Final answer
    x = 2,881.60

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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.