Home / 2,187.36-3,278.16-1,030.68

Finding the Fourth Proportional to 2,187.36, 3,278.16 and 1,030.68

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Solution

The fourth proportional to 2,187.36, 3,278.16 and 1,030.68 is: 1,544.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,187.36 : 3,278.16 = 1,030.68 : x
  2. Step 2: Convert to fraction form
    2,187.36/3,278.16 = 1,030.68/x
  3. Step 3: Cross multiply
    2,187.36x = 3,278.16 × 1,030.68
  4. Step 4: Simplify right side
    2,187.36x = 3,378,733.95
  5. Step 5: Solve for x
    x = 3,378,733.95/2,187.36
  6. Step 6: Final answer
    x = 1,544.66

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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.