Home / 2,670.67-4,008.05-1,210.85

Finding the Fourth Proportional to 2,670.67, 4,008.05 and 1,210.85

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Solution

The fourth proportional to 2,670.67, 4,008.05 and 1,210.85 is: 1,817.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,670.67 : 4,008.05 = 1,210.85 : x
  2. Step 2: Convert to fraction form
    2,670.67/4,008.05 = 1,210.85/x
  3. Step 3: Cross multiply
    2,670.67x = 4,008.05 × 1,210.85
  4. Step 4: Simplify right side
    2,670.67x = 4,853,140.82
  5. Step 5: Solve for x
    x = 4,853,140.82/2,670.67
  6. Step 6: Final answer
    x = 1,817.20

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1.5x scale

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.