Home / 1,266.41-1,740.94-1,088.72

Finding the Fourth Proportional to 1,266.41, 1,740.94 and 1,088.72

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Solution

The fourth proportional to 1,266.41, 1,740.94 and 1,088.72 is: 1,496.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,266.41 : 1,740.94 = 1,088.72 : x
  2. Step 2: Convert to fraction form
    1,266.41/1,740.94 = 1,088.72/x
  3. Step 3: Cross multiply
    1,266.41x = 1,740.94 × 1,088.72
  4. Step 4: Simplify right side
    1,266.41x = 1,895,392.53
  5. Step 5: Solve for x
    x = 1,895,392.53/1,266.41
  6. Step 6: Final answer
    x = 1,496.67

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.