Home / 3,054.92-4,210.18-2,170.40

Finding the Fourth Proportional to 3,054.92, 4,210.18 and 2,170.40

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Solution

The fourth proportional to 3,054.92, 4,210.18 and 2,170.40 is: 2,991.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,054.92 : 4,210.18 = 2,170.40 : x
  2. Step 2: Convert to fraction form
    3,054.92/4,210.18 = 2,170.40/x
  3. Step 3: Cross multiply
    3,054.92x = 4,210.18 × 2,170.40
  4. Step 4: Simplify right side
    3,054.92x = 9,137,748.20
  5. Step 5: Solve for x
    x = 9,137,748.20/3,054.92
  6. Step 6: Final answer
    x = 2,991.16

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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.