Home / 2,427.70-3,640.40-1,111.07

Finding the Fourth Proportional to 2,427.70, 3,640.40 and 1,111.07

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Solution

The fourth proportional to 2,427.70, 3,640.40 and 1,111.07 is: 1,666.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,427.70 : 3,640.40 = 1,111.07 : x
  2. Step 2: Convert to fraction form
    2,427.70/3,640.40 = 1,111.07/x
  3. Step 3: Cross multiply
    2,427.70x = 3,640.40 × 1,111.07
  4. Step 4: Simplify right side
    2,427.70x = 4,044,739.23
  5. Step 5: Solve for x
    x = 4,044,739.23/2,427.70
  6. Step 6: Final answer
    x = 1,666.08

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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.