Home / 2,106.10-3,160.35-1,457.30

Finding the Fourth Proportional to 2,106.10, 3,160.35 and 1,457.30

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Solution

The fourth proportional to 2,106.10, 3,160.35 and 1,457.30 is: 2,186.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,106.10 : 3,160.35 = 1,457.30 : x
  2. Step 2: Convert to fraction form
    2,106.10/3,160.35 = 1,457.30/x
  3. Step 3: Cross multiply
    2,106.10x = 3,160.35 × 1,457.30
  4. Step 4: Simplify right side
    2,106.10x = 4,605,578.06
  5. Step 5: Solve for x
    x = 4,605,578.06/2,106.10
  6. Step 6: Final answer
    x = 2,186.78

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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.