Home / 5,639.08-8,459.20-1,940.84

Finding the Fourth Proportional to 5,639.08, 8,459.20 and 1,940.84

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Solution

The fourth proportional to 5,639.08, 8,459.20 and 1,940.84 is: 2,911.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,639.08 : 8,459.20 = 1,940.84 : x
  2. Step 2: Convert to fraction form
    5,639.08/8,459.20 = 1,940.84/x
  3. Step 3: Cross multiply
    5,639.08x = 8,459.20 × 1,940.84
  4. Step 4: Simplify right side
    5,639.08x = 16,417,953.73
  5. Step 5: Solve for x
    x = 16,417,953.73/5,639.08
  6. Step 6: Final answer
    x = 2,911.46

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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.