Home / 4,679.74-6,457.35-2,690.38

Finding the Fourth Proportional to 4,679.74, 6,457.35 and 2,690.38

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Solution

The fourth proportional to 4,679.74, 6,457.35 and 2,690.38 is: 3,712.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,679.74 : 6,457.35 = 2,690.38 : x
  2. Step 2: Convert to fraction form
    4,679.74/6,457.35 = 2,690.38/x
  3. Step 3: Cross multiply
    4,679.74x = 6,457.35 × 2,690.38
  4. Step 4: Simplify right side
    4,679.74x = 17,372,725.29
  5. Step 5: Solve for x
    x = 17,372,725.29/4,679.74
  6. Step 6: Final answer
    x = 3,712.33

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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.