Home / 5,619.42-8,430.36-1,724.13

Finding the Fourth Proportional to 5,619.42, 8,430.36 and 1,724.13

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Solution

The fourth proportional to 5,619.42, 8,430.36 and 1,724.13 is: 2,586.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,619.42 : 8,430.36 = 1,724.13 : x
  2. Step 2: Convert to fraction form
    5,619.42/8,430.36 = 1,724.13/x
  3. Step 3: Cross multiply
    5,619.42x = 8,430.36 × 1,724.13
  4. Step 4: Simplify right side
    5,619.42x = 14,535,036.59
  5. Step 5: Solve for x
    x = 14,535,036.59/5,619.42
  6. Step 6: Final answer
    x = 2,586.57

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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.