Home / 3,620.69-5,420.70-2,384.32

Finding the Fourth Proportional to 3,620.69, 5,420.70 and 2,384.32

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Solution

The fourth proportional to 3,620.69, 5,420.70 and 2,384.32 is: 3,569.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,620.69 : 5,420.70 = 2,384.32 : x
  2. Step 2: Convert to fraction form
    3,620.69/5,420.70 = 2,384.32/x
  3. Step 3: Cross multiply
    3,620.69x = 5,420.70 × 2,384.32
  4. Step 4: Simplify right side
    3,620.69x = 12,924,683.42
  5. Step 5: Solve for x
    x = 12,924,683.42/3,620.69
  6. Step 6: Final answer
    x = 3,569.67

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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.