Home / 1,857.51-2,786.57-625.03

Finding the Fourth Proportional to 1,857.51, 2,786.57 and 625.03

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Solution

The fourth proportional to 1,857.51, 2,786.57 and 625.03 is: 937.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,857.51 : 2,786.57 = 625.03 : x
  2. Step 2: Convert to fraction form
    1,857.51/2,786.57 = 625.03/x
  3. Step 3: Cross multiply
    1,857.51x = 2,786.57 × 625.03
  4. Step 4: Simplify right side
    1,857.51x = 1,741,689.85
  5. Step 5: Solve for x
    x = 1,741,689.85/1,857.51
  6. Step 6: Final answer
    x = 937.65

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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.