Home / 3,678.09-5,515.53-1,337.33

Finding the Fourth Proportional to 3,678.09, 5,515.53 and 1,337.33

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Solution

The fourth proportional to 3,678.09, 5,515.53 and 1,337.33 is: 2,005.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,678.09 : 5,515.53 = 1,337.33 : x
  2. Step 2: Convert to fraction form
    3,678.09/5,515.53 = 1,337.33/x
  3. Step 3: Cross multiply
    3,678.09x = 5,515.53 × 1,337.33
  4. Step 4: Simplify right side
    3,678.09x = 7,376,056.16
  5. Step 5: Solve for x
    x = 7,376,056.16/3,678.09
  6. Step 6: Final answer
    x = 2,005.40

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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.