Home / 6,619.32-9,929.03-1,688.94

Finding the Fourth Proportional to 6,619.32, 9,929.03 and 1,688.94

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Solution

The fourth proportional to 6,619.32, 9,929.03 and 1,688.94 is: 2,533.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,619.32 : 9,929.03 = 1,688.94 : x
  2. Step 2: Convert to fraction form
    6,619.32/9,929.03 = 1,688.94/x
  3. Step 3: Cross multiply
    6,619.32x = 9,929.03 × 1,688.94
  4. Step 4: Simplify right side
    6,619.32x = 16,769,527.48
  5. Step 5: Solve for x
    x = 16,769,527.48/6,619.32
  6. Step 6: Final answer
    x = 2,533.42

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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.