Home / 4,921.96-7,378.28-1,962.23

Finding the Fourth Proportional to 4,921.96, 7,378.28 and 1,962.23

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Solution

The fourth proportional to 4,921.96, 7,378.28 and 1,962.23 is: 2,941.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,921.96 : 7,378.28 = 1,962.23 : x
  2. Step 2: Convert to fraction form
    4,921.96/7,378.28 = 1,962.23/x
  3. Step 3: Cross multiply
    4,921.96x = 7,378.28 × 1,962.23
  4. Step 4: Simplify right side
    4,921.96x = 14,477,882.36
  5. Step 5: Solve for x
    x = 14,477,882.36/4,921.96
  6. Step 6: Final answer
    x = 2,941.49

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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.