Home / 4,180.79-6,271.28-1,219.11

Finding the Fourth Proportional to 4,180.79, 6,271.28 and 1,219.11

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Solution

The fourth proportional to 4,180.79, 6,271.28 and 1,219.11 is: 1,828.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,180.79 : 6,271.28 = 1,219.11 : x
  2. Step 2: Convert to fraction form
    4,180.79/6,271.28 = 1,219.11/x
  3. Step 3: Cross multiply
    4,180.79x = 6,271.28 × 1,219.11
  4. Step 4: Simplify right side
    4,180.79x = 7,645,374.07
  5. Step 5: Solve for x
    x = 7,645,374.07/4,180.79
  6. Step 6: Final answer
    x = 1,828.69

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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.