Home / 4,928.21-7,392.18-1,418.23

Finding the Fourth Proportional to 4,928.21, 7,392.18 and 1,418.23

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Solution

The fourth proportional to 4,928.21, 7,392.18 and 1,418.23 is: 2,127.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,928.21 : 7,392.18 = 1,418.23 : x
  2. Step 2: Convert to fraction form
    4,928.21/7,392.18 = 1,418.23/x
  3. Step 3: Cross multiply
    4,928.21x = 7,392.18 × 1,418.23
  4. Step 4: Simplify right side
    4,928.21x = 10,483,776.44
  5. Step 5: Solve for x
    x = 10,483,776.44/4,928.21
  6. Step 6: Final answer
    x = 2,127.30

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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.