Home / 3,985.17-5,976.37-1,520.69

Finding the Fourth Proportional to 3,985.17, 5,976.37 and 1,520.69

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Solution

The fourth proportional to 3,985.17, 5,976.37 and 1,520.69 is: 2,280.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,985.17 : 5,976.37 = 1,520.69 : x
  2. Step 2: Convert to fraction form
    3,985.17/5,976.37 = 1,520.69/x
  3. Step 3: Cross multiply
    3,985.17x = 5,976.37 × 1,520.69
  4. Step 4: Simplify right side
    3,985.17x = 9,088,178.11
  5. Step 5: Solve for x
    x = 9,088,178.11/3,985.17
  6. Step 6: Final answer
    x = 2,280.50

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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.