Home / 5,419.51-7,478.85-3,029.32

Finding the Fourth Proportional to 5,419.51, 7,478.85 and 3,029.32

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Solution

The fourth proportional to 5,419.51, 7,478.85 and 3,029.32 is: 4,180.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,419.51 : 7,478.85 = 3,029.32 : x
  2. Step 2: Convert to fraction form
    5,419.51/7,478.85 = 3,029.32/x
  3. Step 3: Cross multiply
    5,419.51x = 7,478.85 × 3,029.32
  4. Step 4: Simplify right side
    5,419.51x = 22,655,829.88
  5. Step 5: Solve for x
    x = 22,655,829.88/5,419.51
  6. Step 6: Final answer
    x = 4,180.42

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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.