Home / 1,815.41-2,715.48-1,530.18

Finding the Fourth Proportional to 1,815.41, 2,715.48 and 1,530.18

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Solution

The fourth proportional to 1,815.41, 2,715.48 and 1,530.18 is: 2,288.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,815.41 : 2,715.48 = 1,530.18 : x
  2. Step 2: Convert to fraction form
    1,815.41/2,715.48 = 1,530.18/x
  3. Step 3: Cross multiply
    1,815.41x = 2,715.48 × 1,530.18
  4. Step 4: Simplify right side
    1,815.41x = 4,155,173.19
  5. Step 5: Solve for x
    x = 4,155,173.19/1,815.41
  6. Step 6: Final answer
    x = 2,288.84

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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.