Home / 7,638.90-11,458.95-3,256.39

Finding the Fourth Proportional to 7,638.90, 11,458.95 and 3,256.39

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Solution

The fourth proportional to 7,638.90, 11,458.95 and 3,256.39 is: 4,884.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,638.90 : 11,458.95 = 3,256.39 : x
  2. Step 2: Convert to fraction form
    7,638.90/11,458.95 = 3,256.39/x
  3. Step 3: Cross multiply
    7,638.90x = 11,458.95 × 3,256.39
  4. Step 4: Simplify right side
    7,638.90x = 37,314,810.19
  5. Step 5: Solve for x
    x = 37,314,810.19/7,638.90
  6. Step 6: Final answer
    x = 4,884.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.