Home / 1,889.79-2,607.64-1,050.45

Finding the Fourth Proportional to 1,889.79, 2,607.64 and 1,050.45

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Solution

The fourth proportional to 1,889.79, 2,607.64 and 1,050.45 is: 1,449.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,889.79 : 2,607.64 = 1,050.45 : x
  2. Step 2: Convert to fraction form
    1,889.79/2,607.64 = 1,050.45/x
  3. Step 3: Cross multiply
    1,889.79x = 2,607.64 × 1,050.45
  4. Step 4: Simplify right side
    1,889.79x = 2,739,195.44
  5. Step 5: Solve for x
    x = 2,739,195.44/1,889.79
  6. Step 6: Final answer
    x = 1,449.47

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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.