Home / 1,778.14-2,664.78-1,570.78

Finding the Fourth Proportional to 1,778.14, 2,664.78 and 1,570.78

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Solution

The fourth proportional to 1,778.14, 2,664.78 and 1,570.78 is: 2,354.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,778.14 : 2,664.78 = 1,570.78 : x
  2. Step 2: Convert to fraction form
    1,778.14/2,664.78 = 1,570.78/x
  3. Step 3: Cross multiply
    1,778.14x = 2,664.78 × 1,570.78
  4. Step 4: Simplify right side
    1,778.14x = 4,185,783.13
  5. Step 5: Solve for x
    x = 4,185,783.13/1,778.14
  6. Step 6: Final answer
    x = 2,354.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.