Home / 2,210.45-3,050.48-1,215.79

Finding the Fourth Proportional to 2,210.45, 3,050.48 and 1,215.79

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Solution

The fourth proportional to 2,210.45, 3,050.48 and 1,215.79 is: 1,677.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,210.45 : 3,050.48 = 1,215.79 : x
  2. Step 2: Convert to fraction form
    2,210.45/3,050.48 = 1,215.79/x
  3. Step 3: Cross multiply
    2,210.45x = 3,050.48 × 1,215.79
  4. Step 4: Simplify right side
    2,210.45x = 3,708,738.49
  5. Step 5: Solve for x
    x = 3,708,738.49/2,210.45
  6. Step 6: Final answer
    x = 1,677.82

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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.