Home / 2,076.08-2,856.40-1,575.80

Finding the Fourth Proportional to 2,076.08, 2,856.40 and 1,575.80

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Solution

The fourth proportional to 2,076.08, 2,856.40 and 1,575.80 is: 2,168.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,076.08 : 2,856.40 = 1,575.80 : x
  2. Step 2: Convert to fraction form
    2,076.08/2,856.40 = 1,575.80/x
  3. Step 3: Cross multiply
    2,076.08x = 2,856.40 × 1,575.80
  4. Step 4: Simplify right side
    2,076.08x = 4,501,115.12
  5. Step 5: Solve for x
    x = 4,501,115.12/2,076.08
  6. Step 6: Final answer
    x = 2,168.09

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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.