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Finding the Fourth Proportional to 3,505.92, 5,259.04 and 1,313.92

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Solution

The fourth proportional to 3,505.92, 5,259.04 and 1,313.92 is: 1,970.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,505.92 : 5,259.04 = 1,313.92 : x
  2. Step 2: Convert to fraction form
    3,505.92/5,259.04 = 1,313.92/x
  3. Step 3: Cross multiply
    3,505.92x = 5,259.04 × 1,313.92
  4. Step 4: Simplify right side
    3,505.92x = 6,909,957.84
  5. Step 5: Solve for x
    x = 6,909,957.84/3,505.92
  6. Step 6: Final answer
    x = 1,970.94

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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.