Home / 1,140.67-1,707.90-895.78

Finding the Fourth Proportional to 1,140.67, 1,707.90 and 895.78

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Solution

The fourth proportional to 1,140.67, 1,707.90 and 895.78 is: 1,341.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,140.67 : 1,707.90 = 895.78 : x
  2. Step 2: Convert to fraction form
    1,140.67/1,707.90 = 895.78/x
  3. Step 3: Cross multiply
    1,140.67x = 1,707.90 × 895.78
  4. Step 4: Simplify right side
    1,140.67x = 1,529,902.66
  5. Step 5: Solve for x
    x = 1,529,902.66/1,140.67
  6. Step 6: Final answer
    x = 1,341.23

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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.