Home / 2,974.63-4,461.91-1,220.45

Finding the Fourth Proportional to 2,974.63, 4,461.91 and 1,220.45

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Solution

The fourth proportional to 2,974.63, 4,461.91 and 1,220.45 is: 1,830.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,974.63 : 4,461.91 = 1,220.45 : x
  2. Step 2: Convert to fraction form
    2,974.63/4,461.91 = 1,220.45/x
  3. Step 3: Cross multiply
    2,974.63x = 4,461.91 × 1,220.45
  4. Step 4: Simplify right side
    2,974.63x = 5,445,538.06
  5. Step 5: Solve for x
    x = 5,445,538.06/2,974.63
  6. Step 6: Final answer
    x = 1,830.66

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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.