Home / 2,670.29-4,007.47-2,151.55

Finding the Fourth Proportional to 2,670.29, 4,007.47 and 2,151.55

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Solution

The fourth proportional to 2,670.29, 4,007.47 and 2,151.55 is: 3,228.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,670.29 : 4,007.47 = 2,151.55 : x
  2. Step 2: Convert to fraction form
    2,670.29/4,007.47 = 2,151.55/x
  3. Step 3: Cross multiply
    2,670.29x = 4,007.47 × 2,151.55
  4. Step 4: Simplify right side
    2,670.29x = 8,622,272.08
  5. Step 5: Solve for x
    x = 8,622,272.08/2,670.29
  6. Step 6: Final answer
    x = 3,228.96

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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.