Home / 2,117.40-3,173.67-1,141.47

Finding the Fourth Proportional to 2,117.40, 3,173.67 and 1,141.47

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Solution

The fourth proportional to 2,117.40, 3,173.67 and 1,141.47 is: 1,710.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,117.40 : 3,173.67 = 1,141.47 : x
  2. Step 2: Convert to fraction form
    2,117.40/3,173.67 = 1,141.47/x
  3. Step 3: Cross multiply
    2,117.40x = 3,173.67 × 1,141.47
  4. Step 4: Simplify right side
    2,117.40x = 3,622,649.09
  5. Step 5: Solve for x
    x = 3,622,649.09/2,117.40
  6. Step 6: Final answer
    x = 1,710.90

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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.