Home / 3,427.65-5,142.69-1,784.16

Finding the Fourth Proportional to 3,427.65, 5,142.69 and 1,784.16

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Solution

The fourth proportional to 3,427.65, 5,142.69 and 1,784.16 is: 2,676.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,427.65 : 5,142.69 = 1,784.16 : x
  2. Step 2: Convert to fraction form
    3,427.65/5,142.69 = 1,784.16/x
  3. Step 3: Cross multiply
    3,427.65x = 5,142.69 × 1,784.16
  4. Step 4: Simplify right side
    3,427.65x = 9,175,381.79
  5. Step 5: Solve for x
    x = 9,175,381.79/3,427.65
  6. Step 6: Final answer
    x = 2,676.87

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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.