Home / 1,269.56-1,895.54-1,257.07

Finding the Fourth Proportional to 1,269.56, 1,895.54 and 1,257.07

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Solution

The fourth proportional to 1,269.56, 1,895.54 and 1,257.07 is: 1,876.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,269.56 : 1,895.54 = 1,257.07 : x
  2. Step 2: Convert to fraction form
    1,269.56/1,895.54 = 1,257.07/x
  3. Step 3: Cross multiply
    1,269.56x = 1,895.54 × 1,257.07
  4. Step 4: Simplify right side
    1,269.56x = 2,382,826.47
  5. Step 5: Solve for x
    x = 2,382,826.47/1,269.56
  6. Step 6: Final answer
    x = 1,876.89

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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.