Home / 1,721.10-2,376.30-1,273.07

Finding the Fourth Proportional to 1,721.10, 2,376.30 and 1,273.07

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Solution

The fourth proportional to 1,721.10, 2,376.30 and 1,273.07 is: 1,757.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,721.10 : 2,376.30 = 1,273.07 : x
  2. Step 2: Convert to fraction form
    1,721.10/2,376.30 = 1,273.07/x
  3. Step 3: Cross multiply
    1,721.10x = 2,376.30 × 1,273.07
  4. Step 4: Simplify right side
    1,721.10x = 3,025,184.36
  5. Step 5: Solve for x
    x = 3,025,184.36/1,721.10
  6. Step 6: Final answer
    x = 1,757.70

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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.