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Finding the Fourth Proportional to 5,363.80, 8,036.10 and 4,749.40

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Solution

The fourth proportional to 5,363.80, 8,036.10 and 4,749.40 is: 7,115.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,363.80 : 8,036.10 = 4,749.40 : x
  2. Step 2: Convert to fraction form
    5,363.80/8,036.10 = 4,749.40/x
  3. Step 3: Cross multiply
    5,363.80x = 8,036.10 × 4,749.40
  4. Step 4: Simplify right side
    5,363.80x = 38,166,653.34
  5. Step 5: Solve for x
    x = 38,166,653.34/5,363.80
  6. Step 6: Final answer
    x = 7,115.60

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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.