Home / 3,622.65-5,000.45-2,130.50

Finding the Fourth Proportional to 3,622.65, 5,000.45 and 2,130.50

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Solution

The fourth proportional to 3,622.65, 5,000.45 and 2,130.50 is: 2,940.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,622.65 : 5,000.45 = 2,130.50 : x
  2. Step 2: Convert to fraction form
    3,622.65/5,000.45 = 2,130.50/x
  3. Step 3: Cross multiply
    3,622.65x = 5,000.45 × 2,130.50
  4. Step 4: Simplify right side
    3,622.65x = 10,653,423.07
  5. Step 5: Solve for x
    x = 10,653,423.07/3,622.65
  6. Step 6: Final answer
    x = 2,940.78

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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.