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Finding the Fourth Proportional to 5,273.10, 7,909.65 and 4,811.40

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Solution

The fourth proportional to 5,273.10, 7,909.65 and 4,811.40 is: 7,217.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,273.10 : 7,909.65 = 4,811.40 : x
  2. Step 2: Convert to fraction form
    5,273.10/7,909.65 = 4,811.40/x
  3. Step 3: Cross multiply
    5,273.10x = 7,909.65 × 4,811.40
  4. Step 4: Simplify right side
    5,273.10x = 38,056,490.01
  5. Step 5: Solve for x
    x = 38,056,490.01/5,273.10
  6. Step 6: Final answer
    x = 7,217.10

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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.