Home / 3,748.37-5,172.53-2,154.65

Finding the Fourth Proportional to 3,748.37, 5,172.53 and 2,154.65

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Solution

The fourth proportional to 3,748.37, 5,172.53 and 2,154.65 is: 2,973.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,748.37 : 5,172.53 = 2,154.65 : x
  2. Step 2: Convert to fraction form
    3,748.37/5,172.53 = 2,154.65/x
  3. Step 3: Cross multiply
    3,748.37x = 5,172.53 × 2,154.65
  4. Step 4: Simplify right side
    3,748.37x = 11,144,955.13
  5. Step 5: Solve for x
    x = 11,144,955.13/3,748.37
  6. Step 6: Final answer
    x = 2,973.28

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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.