Home / 3,420.18-4,719.84-2,225.58

Finding the Fourth Proportional to 3,420.18, 4,719.84 and 2,225.58

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Solution

The fourth proportional to 3,420.18, 4,719.84 and 2,225.58 is: 3,071.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,420.18 : 4,719.84 = 2,225.58 : x
  2. Step 2: Convert to fraction form
    3,420.18/4,719.84 = 2,225.58/x
  3. Step 3: Cross multiply
    3,420.18x = 4,719.84 × 2,225.58
  4. Step 4: Simplify right side
    3,420.18x = 10,504,381.51
  5. Step 5: Solve for x
    x = 10,504,381.51/3,420.18
  6. Step 6: Final answer
    x = 3,071.29

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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.