Home / 3,748.90-5,173.65-2,156.07

Finding the Fourth Proportional to 3,748.90, 5,173.65 and 2,156.07

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Solution

The fourth proportional to 3,748.90, 5,173.65 and 2,156.07 is: 2,975.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,748.90 : 5,173.65 = 2,156.07 : x
  2. Step 2: Convert to fraction form
    3,748.90/5,173.65 = 2,156.07/x
  3. Step 3: Cross multiply
    3,748.90x = 5,173.65 × 2,156.07
  4. Step 4: Simplify right side
    3,748.90x = 11,154,751.56
  5. Step 5: Solve for x
    x = 11,154,751.56/3,748.90
  6. Step 6: Final answer
    x = 2,975.47

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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.