Home / 7,457.19-11,185.71-1,910.49

Finding the Fourth Proportional to 7,457.19, 11,185.71 and 1,910.49

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Solution

The fourth proportional to 7,457.19, 11,185.71 and 1,910.49 is: 2,865.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,457.19 : 11,185.71 = 1,910.49 : x
  2. Step 2: Convert to fraction form
    7,457.19/11,185.71 = 1,910.49/x
  3. Step 3: Cross multiply
    7,457.19x = 11,185.71 × 1,910.49
  4. Step 4: Simplify right side
    7,457.19x = 21,370,187.10
  5. Step 5: Solve for x
    x = 21,370,187.10/7,457.19
  6. Step 6: Final answer
    x = 2,865.72

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Double scale
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1.5x scale

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.