Home / 5,518.65-8,278.39-1,623.23

Finding the Fourth Proportional to 5,518.65, 8,278.39 and 1,623.23

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Solution

The fourth proportional to 5,518.65, 8,278.39 and 1,623.23 is: 2,434.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,518.65 : 8,278.39 = 1,623.23 : x
  2. Step 2: Convert to fraction form
    5,518.65/8,278.39 = 1,623.23/x
  3. Step 3: Cross multiply
    5,518.65x = 8,278.39 × 1,623.23
  4. Step 4: Simplify right side
    5,518.65x = 13,437,702.19
  5. Step 5: Solve for x
    x = 13,437,702.19/5,518.65
  6. Step 6: Final answer
    x = 2,434.96

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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.