Home / 3,128.45-4,689.10-1,482.67

Finding the Fourth Proportional to 3,128.45, 4,689.10 and 1,482.67

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Solution

The fourth proportional to 3,128.45, 4,689.10 and 1,482.67 is: 2,222.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,128.45 : 4,689.10 = 1,482.67 : x
  2. Step 2: Convert to fraction form
    3,128.45/4,689.10 = 1,482.67/x
  3. Step 3: Cross multiply
    3,128.45x = 4,689.10 × 1,482.67
  4. Step 4: Simplify right side
    3,128.45x = 6,952,357.04
  5. Step 5: Solve for x
    x = 6,952,357.04/3,128.45
  6. Step 6: Final answer
    x = 2,222.30

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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.