Home / 2,029.32-2,800.44-1,145.10

Finding the Fourth Proportional to 2,029.32, 2,800.44 and 1,145.10

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Solution

The fourth proportional to 2,029.32, 2,800.44 and 1,145.10 is: 1,580.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,029.32 : 2,800.44 = 1,145.10 : x
  2. Step 2: Convert to fraction form
    2,029.32/2,800.44 = 1,145.10/x
  3. Step 3: Cross multiply
    2,029.32x = 2,800.44 × 1,145.10
  4. Step 4: Simplify right side
    2,029.32x = 3,206,783.84
  5. Step 5: Solve for x
    x = 3,206,783.84/2,029.32
  6. Step 6: Final answer
    x = 1,580.23

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Half scale
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Double scale
Find fourth proportional to 2,030.32, 2,801.82 and 1,146.10
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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.