Home / 2,984.78-4,119.53-1,725.64

Finding the Fourth Proportional to 2,984.78, 4,119.53 and 1,725.64

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Solution

The fourth proportional to 2,984.78, 4,119.53 and 1,725.64 is: 2,381.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,984.78 : 4,119.53 = 1,725.64 : x
  2. Step 2: Convert to fraction form
    2,984.78/4,119.53 = 1,725.64/x
  3. Step 3: Cross multiply
    2,984.78x = 4,119.53 × 1,725.64
  4. Step 4: Simplify right side
    2,984.78x = 7,108,806.82
  5. Step 5: Solve for x
    x = 7,108,806.82/2,984.78
  6. Step 6: Final answer
    x = 2,381.68

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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.