Home / 1,458.88-2,185.20-1,148.64

Finding the Fourth Proportional to 1,458.88, 2,185.20 and 1,148.64

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Solution

The fourth proportional to 1,458.88, 2,185.20 and 1,148.64 is: 1,720.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,458.88 : 2,185.20 = 1,148.64 : x
  2. Step 2: Convert to fraction form
    1,458.88/2,185.20 = 1,148.64/x
  3. Step 3: Cross multiply
    1,458.88x = 2,185.20 × 1,148.64
  4. Step 4: Simplify right side
    1,458.88x = 2,510,008.13
  5. Step 5: Solve for x
    x = 2,510,008.13/1,458.88
  6. Step 6: Final answer
    x = 1,720.50

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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.