Home / 2,137.18-2,948.97-1,205.50

Finding the Fourth Proportional to 2,137.18, 2,948.97 and 1,205.50

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Solution

The fourth proportional to 2,137.18, 2,948.97 and 1,205.50 is: 1,663.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,137.18 : 2,948.97 = 1,205.50 : x
  2. Step 2: Convert to fraction form
    2,137.18/2,948.97 = 1,205.50/x
  3. Step 3: Cross multiply
    2,137.18x = 2,948.97 × 1,205.50
  4. Step 4: Simplify right side
    2,137.18x = 3,554,983.34
  5. Step 5: Solve for x
    x = 3,554,983.34/2,137.18
  6. Step 6: Final answer
    x = 1,663.40

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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.