Home / 1,485.85-2,228.12-706.07

Finding the Fourth Proportional to 1,485.85, 2,228.12 and 706.07

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Solution

The fourth proportional to 1,485.85, 2,228.12 and 706.07 is: 1,058.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,485.85 : 2,228.12 = 706.07 : x
  2. Step 2: Convert to fraction form
    1,485.85/2,228.12 = 706.07/x
  3. Step 3: Cross multiply
    1,485.85x = 2,228.12 × 706.07
  4. Step 4: Simplify right side
    1,485.85x = 1,573,208.69
  5. Step 5: Solve for x
    x = 1,573,208.69/1,485.85
  6. Step 6: Final answer
    x = 1,058.79

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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.