Home / 3,580.80-5,370.58-983.13

Finding the Fourth Proportional to 3,580.80, 5,370.58 and 983.13

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Solution

The fourth proportional to 3,580.80, 5,370.58 and 983.13 is: 1,474.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,580.80 : 5,370.58 = 983.13 : x
  2. Step 2: Convert to fraction form
    3,580.80/5,370.58 = 983.13/x
  3. Step 3: Cross multiply
    3,580.80x = 5,370.58 × 983.13
  4. Step 4: Simplify right side
    3,580.80x = 5,279,978.32
  5. Step 5: Solve for x
    x = 5,279,978.32/3,580.80
  6. Step 6: Final answer
    x = 1,474.52

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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.