Home / 1,675.88-2,312.78-1,012.60

Finding the Fourth Proportional to 1,675.88, 2,312.78 and 1,012.60

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Solution

The fourth proportional to 1,675.88, 2,312.78 and 1,012.60 is: 1,397.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,675.88 : 2,312.78 = 1,012.60 : x
  2. Step 2: Convert to fraction form
    1,675.88/2,312.78 = 1,012.60/x
  3. Step 3: Cross multiply
    1,675.88x = 2,312.78 × 1,012.60
  4. Step 4: Simplify right side
    1,675.88x = 2,341,926.78
  5. Step 5: Solve for x
    x = 2,341,926.78/1,675.88
  6. Step 6: Final answer
    x = 1,397.43

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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.