Home / 1,370.94-1,887.27-1,186.98

Finding the Fourth Proportional to 1,370.94, 1,887.27 and 1,186.98

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Solution

The fourth proportional to 1,370.94, 1,887.27 and 1,186.98 is: 1,634.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,370.94 : 1,887.27 = 1,186.98 : x
  2. Step 2: Convert to fraction form
    1,370.94/1,887.27 = 1,186.98/x
  3. Step 3: Cross multiply
    1,370.94x = 1,887.27 × 1,186.98
  4. Step 4: Simplify right side
    1,370.94x = 2,240,151.74
  5. Step 5: Solve for x
    x = 2,240,151.74/1,370.94
  6. Step 6: Final answer
    x = 1,634.03

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1.5x scale

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.