Home / 2,945.15-4,064.15-1,686.06

Finding the Fourth Proportional to 2,945.15, 4,064.15 and 1,686.06

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Solution

The fourth proportional to 2,945.15, 4,064.15 and 1,686.06 is: 2,326.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,945.15 : 4,064.15 = 1,686.06 : x
  2. Step 2: Convert to fraction form
    2,945.15/4,064.15 = 1,686.06/x
  3. Step 3: Cross multiply
    2,945.15x = 4,064.15 × 1,686.06
  4. Step 4: Simplify right side
    2,945.15x = 6,852,392.32
  5. Step 5: Solve for x
    x = 6,852,392.32/2,945.15
  6. Step 6: Final answer
    x = 2,326.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.