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Finding the Fourth Proportional to 5,293.72, 7,945.33 and 2,830.64

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Solution

The fourth proportional to 5,293.72, 7,945.33 and 2,830.64 is: 4,248.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,293.72 : 7,945.33 = 2,830.64 : x
  2. Step 2: Convert to fraction form
    5,293.72/7,945.33 = 2,830.64/x
  3. Step 3: Cross multiply
    5,293.72x = 7,945.33 × 2,830.64
  4. Step 4: Simplify right side
    5,293.72x = 22,490,368.91
  5. Step 5: Solve for x
    x = 22,490,368.91/5,293.72
  6. Step 6: Final answer
    x = 4,248.50

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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.