Home / 4,218.48-6,328.17-1,445.40

Finding the Fourth Proportional to 4,218.48, 6,328.17 and 1,445.40

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Solution

The fourth proportional to 4,218.48, 6,328.17 and 1,445.40 is: 2,168.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,218.48 : 6,328.17 = 1,445.40 : x
  2. Step 2: Convert to fraction form
    4,218.48/6,328.17 = 1,445.40/x
  3. Step 3: Cross multiply
    4,218.48x = 6,328.17 × 1,445.40
  4. Step 4: Simplify right side
    4,218.48x = 9,146,736.92
  5. Step 5: Solve for x
    x = 9,146,736.92/4,218.48
  6. Step 6: Final answer
    x = 2,168.25

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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.