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Finding the Fourth Proportional to 7,445.52, 11,168.42 and 1,898.91

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Solution

The fourth proportional to 7,445.52, 11,168.42 and 1,898.91 is: 2,848.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,445.52 : 11,168.42 = 1,898.91 : x
  2. Step 2: Convert to fraction form
    7,445.52/11,168.42 = 1,898.91/x
  3. Step 3: Cross multiply
    7,445.52x = 11,168.42 × 1,898.91
  4. Step 4: Simplify right side
    7,445.52x = 21,207,814.93
  5. Step 5: Solve for x
    x = 21,207,814.93/7,445.52
  6. Step 6: Final answer
    x = 2,848.40

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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.