Home / 7,445.30-11,167.64-1,898.78

Finding the Fourth Proportional to 7,445.30, 11,167.64 and 1,898.78

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Solution

The fourth proportional to 7,445.30, 11,167.64 and 1,898.78 is: 2,848.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,445.30 : 11,167.64 = 1,898.78 : x
  2. Step 2: Convert to fraction form
    7,445.30/11,167.64 = 1,898.78/x
  3. Step 3: Cross multiply
    7,445.30x = 11,167.64 × 1,898.78
  4. Step 4: Simplify right side
    7,445.30x = 21,204,891.48
  5. Step 5: Solve for x
    x = 21,204,891.48/7,445.30
  6. Step 6: Final answer
    x = 2,848.09

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1.5x scale

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.