Home / 3,072.30-4,607.55-1,428.45

Finding the Fourth Proportional to 3,072.30, 4,607.55 and 1,428.45

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Solution

The fourth proportional to 3,072.30, 4,607.55 and 1,428.45 is: 2,142.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,072.30 : 4,607.55 = 1,428.45 : x
  2. Step 2: Convert to fraction form
    3,072.30/4,607.55 = 1,428.45/x
  3. Step 3: Cross multiply
    3,072.30x = 4,607.55 × 1,428.45
  4. Step 4: Simplify right side
    3,072.30x = 6,581,654.80
  5. Step 5: Solve for x
    x = 6,581,654.80/3,072.30
  6. Step 6: Final answer
    x = 2,142.26

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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.