Home / 2,938.64-4,410.84-1,400.72

Finding the Fourth Proportional to 2,938.64, 4,410.84 and 1,400.72

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Solution

The fourth proportional to 2,938.64, 4,410.84 and 1,400.72 is: 2,102.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,938.64 : 4,410.84 = 1,400.72 : x
  2. Step 2: Convert to fraction form
    2,938.64/4,410.84 = 1,400.72/x
  3. Step 3: Cross multiply
    2,938.64x = 4,410.84 × 1,400.72
  4. Step 4: Simplify right side
    2,938.64x = 6,178,351.80
  5. Step 5: Solve for x
    x = 6,178,351.80/2,938.64
  6. Step 6: Final answer
    x = 2,102.45

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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.