Home / 3,419.26-5,128.90-1,570.98

Finding the Fourth Proportional to 3,419.26, 5,128.90 and 1,570.98

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Solution

The fourth proportional to 3,419.26, 5,128.90 and 1,570.98 is: 2,356.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,419.26 : 5,128.90 = 1,570.98 : x
  2. Step 2: Convert to fraction form
    3,419.26/5,128.90 = 1,570.98/x
  3. Step 3: Cross multiply
    3,419.26x = 5,128.90 × 1,570.98
  4. Step 4: Simplify right side
    3,419.26x = 8,057,399.32
  5. Step 5: Solve for x
    x = 8,057,399.32/3,419.26
  6. Step 6: Final answer
    x = 2,356.47

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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.