Home / 2,945.56-4,064.77-1,686.74

Finding the Fourth Proportional to 2,945.56, 4,064.77 and 1,686.74

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Solution

The fourth proportional to 2,945.56, 4,064.77 and 1,686.74 is: 2,327.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,945.56 : 4,064.77 = 1,686.74 : x
  2. Step 2: Convert to fraction form
    2,945.56/4,064.77 = 1,686.74/x
  3. Step 3: Cross multiply
    2,945.56x = 4,064.77 × 1,686.74
  4. Step 4: Simplify right side
    2,945.56x = 6,856,210.15
  5. Step 5: Solve for x
    x = 6,856,210.15/2,945.56
  6. Step 6: Final answer
    x = 2,327.64

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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.