Home / 5,619.84-8,429.76-1,724.28

Finding the Fourth Proportional to 5,619.84, 8,429.76 and 1,724.28

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Solution

The fourth proportional to 5,619.84, 8,429.76 and 1,724.28 is: 2,586.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,619.84 : 8,429.76 = 1,724.28 : x
  2. Step 2: Convert to fraction form
    5,619.84/8,429.76 = 1,724.28/x
  3. Step 3: Cross multiply
    5,619.84x = 8,429.76 × 1,724.28
  4. Step 4: Simplify right side
    5,619.84x = 14,535,266.57
  5. Step 5: Solve for x
    x = 14,535,266.57/5,619.84
  6. Step 6: Final answer
    x = 2,586.42

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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.