Home / 4,627.52-6,386.56-2,638.40

Finding the Fourth Proportional to 4,627.52, 6,386.56 and 2,638.40

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Solution

The fourth proportional to 4,627.52, 6,386.56 and 2,638.40 is: 3,641.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,627.52 : 6,386.56 = 2,638.40 : x
  2. Step 2: Convert to fraction form
    4,627.52/6,386.56 = 2,638.40/x
  3. Step 3: Cross multiply
    4,627.52x = 6,386.56 × 2,638.40
  4. Step 4: Simplify right side
    4,627.52x = 16,850,299.90
  5. Step 5: Solve for x
    x = 16,850,299.90/4,627.52
  6. Step 6: Final answer
    x = 3,641.32

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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.