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Finding the Fourth Proportional to 4,805.64, 7,208.74 and 1,342.88

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Solution

The fourth proportional to 4,805.64, 7,208.74 and 1,342.88 is: 2,014.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,805.64 : 7,208.74 = 1,342.88 : x
  2. Step 2: Convert to fraction form
    4,805.64/7,208.74 = 1,342.88/x
  3. Step 3: Cross multiply
    4,805.64x = 7,208.74 × 1,342.88
  4. Step 4: Simplify right side
    4,805.64x = 9,680,472.77
  5. Step 5: Solve for x
    x = 9,680,472.77/4,805.64
  6. Step 6: Final answer
    x = 2,014.40

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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.