Home / 4,920.76-7,382.58-1,458.10

Finding the Fourth Proportional to 4,920.76, 7,382.58 and 1,458.10

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Solution

The fourth proportional to 4,920.76, 7,382.58 and 1,458.10 is: 2,187.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,920.76 : 7,382.58 = 1,458.10 : x
  2. Step 2: Convert to fraction form
    4,920.76/7,382.58 = 1,458.10/x
  3. Step 3: Cross multiply
    4,920.76x = 7,382.58 × 1,458.10
  4. Step 4: Simplify right side
    4,920.76x = 10,764,539.90
  5. Step 5: Solve for x
    x = 10,764,539.90/4,920.76
  6. Step 6: Final answer
    x = 2,187.58

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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.