Home / 5,619.36-8,430.16-1,723.44

Finding the Fourth Proportional to 5,619.36, 8,430.16 and 1,723.44

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Solution

The fourth proportional to 5,619.36, 8,430.16 and 1,723.44 is: 2,585.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,619.36 : 8,430.16 = 1,723.44 : x
  2. Step 2: Convert to fraction form
    5,619.36/8,430.16 = 1,723.44/x
  3. Step 3: Cross multiply
    5,619.36x = 8,430.16 × 1,723.44
  4. Step 4: Simplify right side
    5,619.36x = 14,528,874.95
  5. Step 5: Solve for x
    x = 14,528,874.95/5,619.36
  6. Step 6: Final answer
    x = 2,585.50

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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.