Home / 2,007.19-2,770.20-1,210.54

Finding the Fourth Proportional to 2,007.19, 2,770.20 and 1,210.54

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Solution

The fourth proportional to 2,007.19, 2,770.20 and 1,210.54 is: 1,670.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,007.19 : 2,770.20 = 1,210.54 : x
  2. Step 2: Convert to fraction form
    2,007.19/2,770.20 = 1,210.54/x
  3. Step 3: Cross multiply
    2,007.19x = 2,770.20 × 1,210.54
  4. Step 4: Simplify right side
    2,007.19x = 3,353,437.91
  5. Step 5: Solve for x
    x = 3,353,437.91/2,007.19
  6. Step 6: Final answer
    x = 1,670.71

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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.