Home / 5,619.70-8,429.55-1,724.10

Finding the Fourth Proportional to 5,619.70, 8,429.55 and 1,724.10

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Solution

The fourth proportional to 5,619.70, 8,429.55 and 1,724.10 is: 2,586.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,619.70 : 8,429.55 = 1,724.10 : x
  2. Step 2: Convert to fraction form
    5,619.70/8,429.55 = 1,724.10/x
  3. Step 3: Cross multiply
    5,619.70x = 8,429.55 × 1,724.10
  4. Step 4: Simplify right side
    5,619.70x = 14,533,387.16
  5. Step 5: Solve for x
    x = 14,533,387.16/5,619.70
  6. Step 6: Final answer
    x = 2,586.15

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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.