Home / 5,901.60-8,145-3,663.12

Finding the Fourth Proportional to 5,901.60, 8,145 and 3,663.12

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Solution

The fourth proportional to 5,901.60, 8,145 and 3,663.12 is: 5,055.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,901.60 : 8,145 = 3,663.12 : x
  2. Step 2: Convert to fraction form
    5,901.60/8,145 = 3,663.12/x
  3. Step 3: Cross multiply
    5,901.60x = 8,145 × 3,663.12
  4. Step 4: Simplify right side
    5,901.60x = 29,836,112.40
  5. Step 5: Solve for x
    x = 29,836,112.40/5,901.60
  6. Step 6: Final answer
    x = 5,055.60

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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.