Home / 5,618.93-8,423.54-2,153.75

Finding the Fourth Proportional to 5,618.93, 8,423.54 and 2,153.75

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Solution

The fourth proportional to 5,618.93, 8,423.54 and 2,153.75 is: 3,228.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,618.93 : 8,423.54 = 2,153.75 : x
  2. Step 2: Convert to fraction form
    5,618.93/8,423.54 = 2,153.75/x
  3. Step 3: Cross multiply
    5,618.93x = 8,423.54 × 2,153.75
  4. Step 4: Simplify right side
    5,618.93x = 18,142,188.51
  5. Step 5: Solve for x
    x = 18,142,188.51/5,618.93
  6. Step 6: Final answer
    x = 3,228.76

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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.