Home / 2,119.66-2,925.60-1,412.74

Finding the Fourth Proportional to 2,119.66, 2,925.60 and 1,412.74

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Solution

The fourth proportional to 2,119.66, 2,925.60 and 1,412.74 is: 1,949.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,119.66 : 2,925.60 = 1,412.74 : x
  2. Step 2: Convert to fraction form
    2,119.66/2,925.60 = 1,412.74/x
  3. Step 3: Cross multiply
    2,119.66x = 2,925.60 × 1,412.74
  4. Step 4: Simplify right side
    2,119.66x = 4,133,112.14
  5. Step 5: Solve for x
    x = 4,133,112.14/2,119.66
  6. Step 6: Final answer
    x = 1,949.89

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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.