Home / 4,627.76-6,386.42-2,638.50

Finding the Fourth Proportional to 4,627.76, 6,386.42 and 2,638.50

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Solution

The fourth proportional to 4,627.76, 6,386.42 and 2,638.50 is: 3,641.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,627.76 : 6,386.42 = 2,638.50 : x
  2. Step 2: Convert to fraction form
    4,627.76/6,386.42 = 2,638.50/x
  3. Step 3: Cross multiply
    4,627.76x = 6,386.42 × 2,638.50
  4. Step 4: Simplify right side
    4,627.76x = 16,850,555.98
  5. Step 5: Solve for x
    x = 16,850,555.98/4,627.76
  6. Step 6: Final answer
    x = 3,641.19

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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.