Home / 1,277.14-1,764.86-1,088.05

Finding the Fourth Proportional to 1,277.14, 1,764.86 and 1,088.05

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Solution

The fourth proportional to 1,277.14, 1,764.86 and 1,088.05 is: 1,503.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,277.14 : 1,764.86 = 1,088.05 : x
  2. Step 2: Convert to fraction form
    1,277.14/1,764.86 = 1,088.05/x
  3. Step 3: Cross multiply
    1,277.14x = 1,764.86 × 1,088.05
  4. Step 4: Simplify right side
    1,277.14x = 1,920,255.92
  5. Step 5: Solve for x
    x = 1,920,255.92/1,277.14
  6. Step 6: Final answer
    x = 1,503.56

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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.