Home / 7,470.39-11,209.37-3,090.99

Finding the Fourth Proportional to 7,470.39, 11,209.37 and 3,090.99

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Solution

The fourth proportional to 7,470.39, 11,209.37 and 3,090.99 is: 4,638.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,470.39 : 11,209.37 = 3,090.99 : x
  2. Step 2: Convert to fraction form
    7,470.39/11,209.37 = 3,090.99/x
  3. Step 3: Cross multiply
    7,470.39x = 11,209.37 × 3,090.99
  4. Step 4: Simplify right side
    7,470.39x = 34,648,035.12
  5. Step 5: Solve for x
    x = 34,648,035.12/7,470.39
  6. Step 6: Final answer
    x = 4,638.05

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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.