Home / 1,961.49-2,707.02-1,299.63

Finding the Fourth Proportional to 1,961.49, 2,707.02 and 1,299.63

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Solution

The fourth proportional to 1,961.49, 2,707.02 and 1,299.63 is: 1,793.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,961.49 : 2,707.02 = 1,299.63 : x
  2. Step 2: Convert to fraction form
    1,961.49/2,707.02 = 1,299.63/x
  3. Step 3: Cross multiply
    1,961.49x = 2,707.02 × 1,299.63
  4. Step 4: Simplify right side
    1,961.49x = 3,518,124.40
  5. Step 5: Solve for x
    x = 3,518,124.40/1,961.49
  6. Step 6: Final answer
    x = 1,793.60

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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.