Home / 4,920.28-7,380.48-1,457.60

Finding the Fourth Proportional to 4,920.28, 7,380.48 and 1,457.60

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Solution

The fourth proportional to 4,920.28, 7,380.48 and 1,457.60 is: 2,186.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,920.28 : 7,380.48 = 1,457.60 : x
  2. Step 2: Convert to fraction form
    4,920.28/7,380.48 = 1,457.60/x
  3. Step 3: Cross multiply
    4,920.28x = 7,380.48 × 1,457.60
  4. Step 4: Simplify right side
    4,920.28x = 10,757,787.65
  5. Step 5: Solve for x
    x = 10,757,787.65/4,920.28
  6. Step 6: Final answer
    x = 2,186.42

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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.