Home / 1,485.30-2,225.52-1,051.68

Finding the Fourth Proportional to 1,485.30, 2,225.52 and 1,051.68

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Solution

The fourth proportional to 1,485.30, 2,225.52 and 1,051.68 is: 1,575.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,485.30 : 2,225.52 = 1,051.68 : x
  2. Step 2: Convert to fraction form
    1,485.30/2,225.52 = 1,051.68/x
  3. Step 3: Cross multiply
    1,485.30x = 2,225.52 × 1,051.68
  4. Step 4: Simplify right side
    1,485.30x = 2,340,534.87
  5. Step 5: Solve for x
    x = 2,340,534.87/1,485.30
  6. Step 6: Final answer
    x = 1,575.80

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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.