Home / 3,422.40-4,720.47-2,225.16

Finding the Fourth Proportional to 3,422.40, 4,720.47 and 2,225.16

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Solution

The fourth proportional to 3,422.40, 4,720.47 and 2,225.16 is: 3,069.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,422.40 : 4,720.47 = 2,225.16 : x
  2. Step 2: Convert to fraction form
    3,422.40/4,720.47 = 2,225.16/x
  3. Step 3: Cross multiply
    3,422.40x = 4,720.47 × 2,225.16
  4. Step 4: Simplify right side
    3,422.40x = 10,503,808.41
  5. Step 5: Solve for x
    x = 10,503,808.41/3,422.40
  6. Step 6: Final answer
    x = 3,069.14

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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.