Home / 1,636.89-2,457.45-1,018.65

Finding the Fourth Proportional to 1,636.89, 2,457.45 and 1,018.65

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Solution

The fourth proportional to 1,636.89, 2,457.45 and 1,018.65 is: 1,529.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,636.89 : 2,457.45 = 1,018.65 : x
  2. Step 2: Convert to fraction form
    1,636.89/2,457.45 = 1,018.65/x
  3. Step 3: Cross multiply
    1,636.89x = 2,457.45 × 1,018.65
  4. Step 4: Simplify right side
    1,636.89x = 2,503,281.44
  5. Step 5: Solve for x
    x = 2,503,281.44/1,636.89
  6. Step 6: Final answer
    x = 1,529.29

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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.