Home / 3,421.03-4,720.93-1,928.94

Finding the Fourth Proportional to 3,421.03, 4,720.93 and 1,928.94

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Solution

The fourth proportional to 3,421.03, 4,720.93 and 1,928.94 is: 2,661.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,421.03 : 4,720.93 = 1,928.94 : x
  2. Step 2: Convert to fraction form
    3,421.03/4,720.93 = 1,928.94/x
  3. Step 3: Cross multiply
    3,421.03x = 4,720.93 × 1,928.94
  4. Step 4: Simplify right side
    3,421.03x = 9,106,362.29
  5. Step 5: Solve for x
    x = 9,106,362.29/3,421.03
  6. Step 6: Final answer
    x = 2,661.88

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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.