Home / 4,920.63-7,382.03-1,457.88

Finding the Fourth Proportional to 4,920.63, 7,382.03 and 1,457.88

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Solution

The fourth proportional to 4,920.63, 7,382.03 and 1,457.88 is: 2,187.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,920.63 : 7,382.03 = 1,457.88 : x
  2. Step 2: Convert to fraction form
    4,920.63/7,382.03 = 1,457.88/x
  3. Step 3: Cross multiply
    4,920.63x = 7,382.03 × 1,457.88
  4. Step 4: Simplify right side
    4,920.63x = 10,762,106.61
  5. Step 5: Solve for x
    x = 10,762,106.61/4,920.63
  6. Step 6: Final answer
    x = 2,187.14

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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.