Home / 2,210.42-3,315.36-1,235.90

Finding the Fourth Proportional to 2,210.42, 3,315.36 and 1,235.90

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Solution

The fourth proportional to 2,210.42, 3,315.36 and 1,235.90 is: 1,853.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,210.42 : 3,315.36 = 1,235.90 : x
  2. Step 2: Convert to fraction form
    2,210.42/3,315.36 = 1,235.90/x
  3. Step 3: Cross multiply
    2,210.42x = 3,315.36 × 1,235.90
  4. Step 4: Simplify right side
    2,210.42x = 4,097,453.42
  5. Step 5: Solve for x
    x = 4,097,453.42/2,210.42
  6. Step 6: Final answer
    x = 1,853.70

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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.