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Finding the Fourth Proportional to 1,860.06, 2,790.10 and 1,512.98

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Solution

The fourth proportional to 1,860.06, 2,790.10 and 1,512.98 is: 2,269.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,860.06 : 2,790.10 = 1,512.98 : x
  2. Step 2: Convert to fraction form
    1,860.06/2,790.10 = 1,512.98/x
  3. Step 3: Cross multiply
    1,860.06x = 2,790.10 × 1,512.98
  4. Step 4: Simplify right side
    1,860.06x = 4,221,365.50
  5. Step 5: Solve for x
    x = 4,221,365.50/1,860.06
  6. Step 6: Final answer
    x = 2,269.48

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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.