Home / 2,971.63-4,458.80-1,217.91

Finding the Fourth Proportional to 2,971.63, 4,458.80 and 1,217.91

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Solution

The fourth proportional to 2,971.63, 4,458.80 and 1,217.91 is: 1,827.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,971.63 : 4,458.80 = 1,217.91 : x
  2. Step 2: Convert to fraction form
    2,971.63/4,458.80 = 1,217.91/x
  3. Step 3: Cross multiply
    2,971.63x = 4,458.80 × 1,217.91
  4. Step 4: Simplify right side
    2,971.63x = 5,430,417.11
  5. Step 5: Solve for x
    x = 5,430,417.11/2,971.63
  6. Step 6: Final answer
    x = 1,827.42

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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.