Home / 6,627.10-9,145.38-3,643

Finding the Fourth Proportional to 6,627.10, 9,145.38 and 3,643

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Solution

The fourth proportional to 6,627.10, 9,145.38 and 3,643 is: 5,027.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,627.10 : 9,145.38 = 3,643 : x
  2. Step 2: Convert to fraction form
    6,627.10/9,145.38 = 3,643/x
  3. Step 3: Cross multiply
    6,627.10x = 9,145.38 × 3,643
  4. Step 4: Simplify right side
    6,627.10x = 33,316,619.34
  5. Step 5: Solve for x
    x = 33,316,619.34/6,627.10
  6. Step 6: Final answer
    x = 5,027.33

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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.