Home / 4,429.12-6,111.20-3,432.64

Finding the Fourth Proportional to 4,429.12, 6,111.20 and 3,432.64

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Solution

The fourth proportional to 4,429.12, 6,111.20 and 3,432.64 is: 4,736.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,429.12 : 6,111.20 = 3,432.64 : x
  2. Step 2: Convert to fraction form
    4,429.12/6,111.20 = 3,432.64/x
  3. Step 3: Cross multiply
    4,429.12x = 6,111.20 × 3,432.64
  4. Step 4: Simplify right side
    4,429.12x = 20,977,549.57
  5. Step 5: Solve for x
    x = 20,977,549.57/4,429.12
  6. Step 6: Final answer
    x = 4,736.28

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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.