Home / 7,420.13-11,120.16-3,035.19

Finding the Fourth Proportional to 7,420.13, 11,120.16 and 3,035.19

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Solution

The fourth proportional to 7,420.13, 11,120.16 and 3,035.19 is: 4,548.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,420.13 : 11,120.16 = 3,035.19 : x
  2. Step 2: Convert to fraction form
    7,420.13/11,120.16 = 3,035.19/x
  3. Step 3: Cross multiply
    7,420.13x = 11,120.16 × 3,035.19
  4. Step 4: Simplify right side
    7,420.13x = 33,751,851.51
  5. Step 5: Solve for x
    x = 33,751,851.51/7,420.13
  6. Step 6: Final answer
    x = 4,548.69

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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.