Home / 7,439.09-11,155.38-2,507.40

Finding the Fourth Proportional to 7,439.09, 11,155.38 and 2,507.40

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Solution

The fourth proportional to 7,439.09, 11,155.38 and 2,507.40 is: 3,760.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,439.09 : 11,155.38 = 2,507.40 : x
  2. Step 2: Convert to fraction form
    7,439.09/11,155.38 = 2,507.40/x
  3. Step 3: Cross multiply
    7,439.09x = 11,155.38 × 2,507.40
  4. Step 4: Simplify right side
    7,439.09x = 27,970,999.81
  5. Step 5: Solve for x
    x = 27,970,999.81/7,439.09
  6. Step 6: Final answer
    x = 3,760.01

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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.