Home / 5,376.84-7,420.05-3,018.99

Finding the Fourth Proportional to 5,376.84, 7,420.05 and 3,018.99

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Solution

The fourth proportional to 5,376.84, 7,420.05 and 3,018.99 is: 4,166.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,376.84 : 7,420.05 = 3,018.99 : x
  2. Step 2: Convert to fraction form
    5,376.84/7,420.05 = 3,018.99/x
  3. Step 3: Cross multiply
    5,376.84x = 7,420.05 × 3,018.99
  4. Step 4: Simplify right side
    5,376.84x = 22,401,056.75
  5. Step 5: Solve for x
    x = 22,401,056.75/5,376.84
  6. Step 6: Final answer
    x = 4,166.21

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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.