Home / 5,376.21-7,419.13-3,018.35

Finding the Fourth Proportional to 5,376.21, 7,419.13 and 3,018.35

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Solution

The fourth proportional to 5,376.21, 7,419.13 and 3,018.35 is: 4,165.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,376.21 : 7,419.13 = 3,018.35 : x
  2. Step 2: Convert to fraction form
    5,376.21/7,419.13 = 3,018.35/x
  3. Step 3: Cross multiply
    5,376.21x = 7,419.13 × 3,018.35
  4. Step 4: Simplify right side
    5,376.21x = 22,393,531.04
  5. Step 5: Solve for x
    x = 22,393,531.04/5,376.21
  6. Step 6: Final answer
    x = 4,165.30

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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.