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Finding the Fourth Proportional to 7,814.77, 10,783.95 and 4,277.29

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Solution

The fourth proportional to 7,814.77, 10,783.95 and 4,277.29 is: 5,902.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,814.77 : 10,783.95 = 4,277.29 : x
  2. Step 2: Convert to fraction form
    7,814.77/10,783.95 = 4,277.29/x
  3. Step 3: Cross multiply
    7,814.77x = 10,783.95 × 4,277.29
  4. Step 4: Simplify right side
    7,814.77x = 46,126,027.58
  5. Step 5: Solve for x
    x = 46,126,027.58/7,814.77
  6. Step 6: Final answer
    x = 5,902.42

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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.