Home / 6,627.32-9,148.74-3,938.36

Finding the Fourth Proportional to 6,627.32, 9,148.74 and 3,938.36

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Solution

The fourth proportional to 6,627.32, 9,148.74 and 3,938.36 is: 5,436.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,627.32 : 9,148.74 = 3,938.36 : x
  2. Step 2: Convert to fraction form
    6,627.32/9,148.74 = 3,938.36/x
  3. Step 3: Cross multiply
    6,627.32x = 9,148.74 × 3,938.36
  4. Step 4: Simplify right side
    6,627.32x = 36,031,031.67
  5. Step 5: Solve for x
    x = 36,031,031.67/6,627.32
  6. Step 6: Final answer
    x = 5,436.74

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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.