Home / 2,156.00-2,975.32-1,684.45

Finding the Fourth Proportional to 2,156.00, 2,975.32 and 1,684.45

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Solution

The fourth proportional to 2,156.00, 2,975.32 and 1,684.45 is: 2,324.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,156.00 : 2,975.32 = 1,684.45 : x
  2. Step 2: Convert to fraction form
    2,156.00/2,975.32 = 1,684.45/x
  3. Step 3: Cross multiply
    2,156.00x = 2,975.32 × 1,684.45
  4. Step 4: Simplify right side
    2,156.00x = 5,011,771.60
  5. Step 5: Solve for x
    x = 5,011,771.60/2,156.00
  6. Step 6: Final answer
    x = 2,324.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.