Home / 2,945.56-4,064.79-1,686.67

Finding the Fourth Proportional to 2,945.56, 4,064.79 and 1,686.67

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Solution

The fourth proportional to 2,945.56, 4,064.79 and 1,686.67 is: 2,327.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,945.56 : 4,064.79 = 1,686.67 : x
  2. Step 2: Convert to fraction form
    2,945.56/4,064.79 = 1,686.67/x
  3. Step 3: Cross multiply
    2,945.56x = 4,064.79 × 1,686.67
  4. Step 4: Simplify right side
    2,945.56x = 6,855,959.35
  5. Step 5: Solve for x
    x = 6,855,959.35/2,945.56
  6. Step 6: Final answer
    x = 2,327.56

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1.5x scale

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.