Home / 4,216.40-6,324.59-1,138.40

Finding the Fourth Proportional to 4,216.40, 6,324.59 and 1,138.40

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Solution

The fourth proportional to 4,216.40, 6,324.59 and 1,138.40 is: 1,707.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,216.40 : 6,324.59 = 1,138.40 : x
  2. Step 2: Convert to fraction form
    4,216.40/6,324.59 = 1,138.40/x
  3. Step 3: Cross multiply
    4,216.40x = 6,324.59 × 1,138.40
  4. Step 4: Simplify right side
    4,216.40x = 7,199,907.56
  5. Step 5: Solve for x
    x = 7,199,907.56/4,216.40
  6. Step 6: Final answer
    x = 1,707.60

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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.