Home / 4,639.79-6,403.07-3,316.66

Finding the Fourth Proportional to 4,639.79, 6,403.07 and 3,316.66

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Solution

The fourth proportional to 4,639.79, 6,403.07 and 3,316.66 is: 4,577.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,639.79 : 6,403.07 = 3,316.66 : x
  2. Step 2: Convert to fraction form
    4,639.79/6,403.07 = 3,316.66/x
  3. Step 3: Cross multiply
    4,639.79x = 6,403.07 × 3,316.66
  4. Step 4: Simplify right side
    4,639.79x = 21,236,798.43
  5. Step 5: Solve for x
    x = 21,236,798.43/4,639.79
  6. Step 6: Final answer
    x = 4,577.10

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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.