Home / 4,977.30-7,458.19-1,856.46

Finding the Fourth Proportional to 4,977.30, 7,458.19 and 1,856.46

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Solution

The fourth proportional to 4,977.30, 7,458.19 and 1,856.46 is: 2,781.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,977.30 : 7,458.19 = 1,856.46 : x
  2. Step 2: Convert to fraction form
    4,977.30/7,458.19 = 1,856.46/x
  3. Step 3: Cross multiply
    4,977.30x = 7,458.19 × 1,856.46
  4. Step 4: Simplify right side
    4,977.30x = 13,845,844.20
  5. Step 5: Solve for x
    x = 13,845,844.20/4,977.30
  6. Step 6: Final answer
    x = 2,781.80

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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.