Home / 2,053.40-2,834.19-1,721.30

Finding the Fourth Proportional to 2,053.40, 2,834.19 and 1,721.30

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Solution

The fourth proportional to 2,053.40, 2,834.19 and 1,721.30 is: 2,375.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,053.40 : 2,834.19 = 1,721.30 : x
  2. Step 2: Convert to fraction form
    2,053.40/2,834.19 = 1,721.30/x
  3. Step 3: Cross multiply
    2,053.40x = 2,834.19 × 1,721.30
  4. Step 4: Simplify right side
    2,053.40x = 4,878,477.08
  5. Step 5: Solve for x
    x = 4,878,477.08/2,053.40
  6. Step 6: Final answer
    x = 2,375.81

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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.