Home / 1,272.58-1,894.66-1,254.35

Finding the Fourth Proportional to 1,272.58, 1,894.66 and 1,254.35

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Solution

The fourth proportional to 1,272.58, 1,894.66 and 1,254.35 is: 1,867.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,272.58 : 1,894.66 = 1,254.35 : x
  2. Step 2: Convert to fraction form
    1,272.58/1,894.66 = 1,254.35/x
  3. Step 3: Cross multiply
    1,272.58x = 1,894.66 × 1,254.35
  4. Step 4: Simplify right side
    1,272.58x = 2,376,566.77
  5. Step 5: Solve for x
    x = 2,376,566.77/1,272.58
  6. Step 6: Final answer
    x = 1,867.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.