Home / 7,090.20-10,635.56-3,623.40

Finding the Fourth Proportional to 7,090.20, 10,635.56 and 3,623.40

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Solution

The fourth proportional to 7,090.20, 10,635.56 and 3,623.40 is: 5,435.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,090.20 : 10,635.56 = 3,623.40 : x
  2. Step 2: Convert to fraction form
    7,090.20/10,635.56 = 3,623.40/x
  3. Step 3: Cross multiply
    7,090.20x = 10,635.56 × 3,623.40
  4. Step 4: Simplify right side
    7,090.20x = 38,536,888.10
  5. Step 5: Solve for x
    x = 38,536,888.10/7,090.20
  6. Step 6: Final answer
    x = 5,435.23

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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.