Home / 3,115.19-4,674.63-1,266.15

Finding the Fourth Proportional to 3,115.19, 4,674.63 and 1,266.15

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Solution

The fourth proportional to 3,115.19, 4,674.63 and 1,266.15 is: 1,899.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,115.19 : 4,674.63 = 1,266.15 : x
  2. Step 2: Convert to fraction form
    3,115.19/4,674.63 = 1,266.15/x
  3. Step 3: Cross multiply
    3,115.19x = 4,674.63 × 1,266.15
  4. Step 4: Simplify right side
    3,115.19x = 5,918,782.77
  5. Step 5: Solve for x
    x = 5,918,782.77/3,115.19
  6. Step 6: Final answer
    x = 1,899.98

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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.