Home / 3,313.02-4,571.28-1,986.42

Finding the Fourth Proportional to 3,313.02, 4,571.28 and 1,986.42

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Solution

The fourth proportional to 3,313.02, 4,571.28 and 1,986.42 is: 2,740.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,313.02 : 4,571.28 = 1,986.42 : x
  2. Step 2: Convert to fraction form
    3,313.02/4,571.28 = 1,986.42/x
  3. Step 3: Cross multiply
    3,313.02x = 4,571.28 × 1,986.42
  4. Step 4: Simplify right side
    3,313.02x = 9,080,482.02
  5. Step 5: Solve for x
    x = 9,080,482.02/3,313.02
  6. Step 6: Final answer
    x = 2,740.85

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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.