Home / 4,243.10-6,364.65-4,121.60

Finding the Fourth Proportional to 4,243.10, 6,364.65 and 4,121.60

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Solution

The fourth proportional to 4,243.10, 6,364.65 and 4,121.60 is: 6,182.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,243.10 : 6,364.65 = 4,121.60 : x
  2. Step 2: Convert to fraction form
    4,243.10/6,364.65 = 4,121.60/x
  3. Step 3: Cross multiply
    4,243.10x = 6,364.65 × 4,121.60
  4. Step 4: Simplify right side
    4,243.10x = 26,232,541.44
  5. Step 5: Solve for x
    x = 26,232,541.44/4,243.10
  6. Step 6: Final answer
    x = 6,182.40

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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.