Home / 1,257.08-1,877.67-1,062.68

Finding the Fourth Proportional to 1,257.08, 1,877.67 and 1,062.68

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Solution

The fourth proportional to 1,257.08, 1,877.67 and 1,062.68 is: 1,587.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,257.08 : 1,877.67 = 1,062.68 : x
  2. Step 2: Convert to fraction form
    1,257.08/1,877.67 = 1,062.68/x
  3. Step 3: Cross multiply
    1,257.08x = 1,877.67 × 1,062.68
  4. Step 4: Simplify right side
    1,257.08x = 1,995,362.36
  5. Step 5: Solve for x
    x = 1,995,362.36/1,257.08
  6. Step 6: Final answer
    x = 1,587.30

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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.