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Finding the Fourth Proportional to 7,817.58, 10,790.19 and 5,303.88

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Solution

The fourth proportional to 7,817.58, 10,790.19 and 5,303.88 is: 7,320.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,817.58 : 10,790.19 = 5,303.88 : x
  2. Step 2: Convert to fraction form
    7,817.58/10,790.19 = 5,303.88/x
  3. Step 3: Cross multiply
    7,817.58x = 10,790.19 × 5,303.88
  4. Step 4: Simplify right side
    7,817.58x = 57,229,872.94
  5. Step 5: Solve for x
    x = 57,229,872.94/7,817.58
  6. Step 6: Final answer
    x = 7,320.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.