Home / 3,583.12-5,374.52-986.16

Finding the Fourth Proportional to 3,583.12, 5,374.52 and 986.16

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Solution

The fourth proportional to 3,583.12, 5,374.52 and 986.16 is: 1,479.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,583.12 : 5,374.52 = 986.16 : x
  2. Step 2: Convert to fraction form
    3,583.12/5,374.52 = 986.16/x
  3. Step 3: Cross multiply
    3,583.12x = 5,374.52 × 986.16
  4. Step 4: Simplify right side
    3,583.12x = 5,300,136.64
  5. Step 5: Solve for x
    x = 5,300,136.64/3,583.12
  6. Step 6: Final answer
    x = 1,479.20

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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.