Home / 4,627.90-6,386.88-2,639.08

Finding the Fourth Proportional to 4,627.90, 6,386.88 and 2,639.08

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Solution

The fourth proportional to 4,627.90, 6,386.88 and 2,639.08 is: 3,642.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,627.90 : 6,386.88 = 2,639.08 : x
  2. Step 2: Convert to fraction form
    4,627.90/6,386.88 = 2,639.08/x
  3. Step 3: Cross multiply
    4,627.90x = 6,386.88 × 2,639.08
  4. Step 4: Simplify right side
    4,627.90x = 16,855,487.27
  5. Step 5: Solve for x
    x = 16,855,487.27/4,627.90
  6. Step 6: Final answer
    x = 3,642.15

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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.