Home / 3,313.42-4,570.61-1,986.35

Finding the Fourth Proportional to 3,313.42, 4,570.61 and 1,986.35

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Solution

The fourth proportional to 3,313.42, 4,570.61 and 1,986.35 is: 2,740.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,313.42 : 4,570.61 = 1,986.35 : x
  2. Step 2: Convert to fraction form
    3,313.42/4,570.61 = 1,986.35/x
  3. Step 3: Cross multiply
    3,313.42x = 4,570.61 × 1,986.35
  4. Step 4: Simplify right side
    3,313.42x = 9,078,831.17
  5. Step 5: Solve for x
    x = 9,078,831.17/3,313.42
  6. Step 6: Final answer
    x = 2,740.02

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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.