Home / 4,628.96-6,387.86-2,639.48

Finding the Fourth Proportional to 4,628.96, 6,387.86 and 2,639.48

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Solution

The fourth proportional to 4,628.96, 6,387.86 and 2,639.48 is: 3,642.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,628.96 : 6,387.86 = 2,639.48 : x
  2. Step 2: Convert to fraction form
    4,628.96/6,387.86 = 2,639.48/x
  3. Step 3: Cross multiply
    4,628.96x = 6,387.86 × 2,639.48
  4. Step 4: Simplify right side
    4,628.96x = 16,860,628.71
  5. Step 5: Solve for x
    x = 16,860,628.71/4,628.96
  6. Step 6: Final answer
    x = 3,642.42

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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.