Home / 3,313.13-4,570.72-2,117.86

Finding the Fourth Proportional to 3,313.13, 4,570.72 and 2,117.86

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Solution

The fourth proportional to 3,313.13, 4,570.72 and 2,117.86 is: 2,921.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,313.13 : 4,570.72 = 2,117.86 : x
  2. Step 2: Convert to fraction form
    3,313.13/4,570.72 = 2,117.86/x
  3. Step 3: Cross multiply
    3,313.13x = 4,570.72 × 2,117.86
  4. Step 4: Simplify right side
    3,313.13x = 9,680,131.79
  5. Step 5: Solve for x
    x = 9,680,131.79/3,313.13
  6. Step 6: Final answer
    x = 2,921.74

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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.