Home / 1,815.76-2,720.28-1,795.60

Finding the Fourth Proportional to 1,815.76, 2,720.28 and 1,795.60

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Solution

The fourth proportional to 1,815.76, 2,720.28 and 1,795.60 is: 2,690.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,815.76 : 2,720.28 = 1,795.60 : x
  2. Step 2: Convert to fraction form
    1,815.76/2,720.28 = 1,795.60/x
  3. Step 3: Cross multiply
    1,815.76x = 2,720.28 × 1,795.60
  4. Step 4: Simplify right side
    1,815.76x = 4,884,534.77
  5. Step 5: Solve for x
    x = 4,884,534.77/1,815.76
  6. Step 6: Final answer
    x = 2,690.08

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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.