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Finding the Fourth Proportional to 7,901.60, 10,903.77 and 4,917.34

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Solution

The fourth proportional to 7,901.60, 10,903.77 and 4,917.34 is: 6,785.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,901.60 : 10,903.77 = 4,917.34 : x
  2. Step 2: Convert to fraction form
    7,901.60/10,903.77 = 4,917.34/x
  3. Step 3: Cross multiply
    7,901.60x = 10,903.77 × 4,917.34
  4. Step 4: Simplify right side
    7,901.60x = 53,617,544.37
  5. Step 5: Solve for x
    x = 53,617,544.37/7,901.60
  6. Step 6: Final answer
    x = 6,785.66

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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.