Home / 3,215.74-4,821.28-2,173.16

Finding the Fourth Proportional to 3,215.74, 4,821.28 and 2,173.16

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Solution

The fourth proportional to 3,215.74, 4,821.28 and 2,173.16 is: 3,258.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,215.74 : 4,821.28 = 2,173.16 : x
  2. Step 2: Convert to fraction form
    3,215.74/4,821.28 = 2,173.16/x
  3. Step 3: Cross multiply
    3,215.74x = 4,821.28 × 2,173.16
  4. Step 4: Simplify right side
    3,215.74x = 10,477,412.84
  5. Step 5: Solve for x
    x = 10,477,412.84/3,215.74
  6. Step 6: Final answer
    x = 3,258.17

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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.