Home / 5,186.16-7,782.88-4,690.44

Finding the Fourth Proportional to 5,186.16, 7,782.88 and 4,690.44

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Solution

The fourth proportional to 5,186.16, 7,782.88 and 4,690.44 is: 7,038.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,186.16 : 7,782.88 = 4,690.44 : x
  2. Step 2: Convert to fraction form
    5,186.16/7,782.88 = 4,690.44/x
  3. Step 3: Cross multiply
    5,186.16x = 7,782.88 × 4,690.44
  4. Step 4: Simplify right side
    5,186.16x = 36,505,131.67
  5. Step 5: Solve for x
    x = 36,505,131.67/5,186.16
  6. Step 6: Final answer
    x = 7,038.95

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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.