Home / 2,210.21-3,050.08-1,215.54

Finding the Fourth Proportional to 2,210.21, 3,050.08 and 1,215.54

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Solution

The fourth proportional to 2,210.21, 3,050.08 and 1,215.54 is: 1,677.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,210.21 : 3,050.08 = 1,215.54 : x
  2. Step 2: Convert to fraction form
    2,210.21/3,050.08 = 1,215.54/x
  3. Step 3: Cross multiply
    2,210.21x = 3,050.08 × 1,215.54
  4. Step 4: Simplify right side
    2,210.21x = 3,707,491.20
  5. Step 5: Solve for x
    x = 3,707,491.20/2,210.21
  6. Step 6: Final answer
    x = 1,677.44

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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.