Home / 3,287.09-4,931.32-1,207.01

Finding the Fourth Proportional to 3,287.09, 4,931.32 and 1,207.01

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Solution

The fourth proportional to 3,287.09, 4,931.32 and 1,207.01 is: 1,810.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,287.09 : 4,931.32 = 1,207.01 : x
  2. Step 2: Convert to fraction form
    3,287.09/4,931.32 = 1,207.01/x
  3. Step 3: Cross multiply
    3,287.09x = 4,931.32 × 1,207.01
  4. Step 4: Simplify right side
    3,287.09x = 5,952,161.86
  5. Step 5: Solve for x
    x = 5,952,161.86/3,287.09
  6. Step 6: Final answer
    x = 1,810.77

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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.