Home / 1,857.85-2,563.86-1,018.63

Finding the Fourth Proportional to 1,857.85, 2,563.86 and 1,018.63

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Solution

The fourth proportional to 1,857.85, 2,563.86 and 1,018.63 is: 1,405.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,857.85 : 2,563.86 = 1,018.63 : x
  2. Step 2: Convert to fraction form
    1,857.85/2,563.86 = 1,018.63/x
  3. Step 3: Cross multiply
    1,857.85x = 2,563.86 × 1,018.63
  4. Step 4: Simplify right side
    1,857.85x = 2,611,606.80
  5. Step 5: Solve for x
    x = 2,611,606.80/1,857.85
  6. Step 6: Final answer
    x = 1,405.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.