Home / 1,688.59-2,530.99-1,104.71

Finding the Fourth Proportional to 1,688.59, 2,530.99 and 1,104.71

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Solution

The fourth proportional to 1,688.59, 2,530.99 and 1,104.71 is: 1,655.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,688.59 : 2,530.99 = 1,104.71 : x
  2. Step 2: Convert to fraction form
    1,688.59/2,530.99 = 1,104.71/x
  3. Step 3: Cross multiply
    1,688.59x = 2,530.99 × 1,104.71
  4. Step 4: Simplify right side
    1,688.59x = 2,796,004.44
  5. Step 5: Solve for x
    x = 2,796,004.44/1,688.59
  6. Step 6: Final answer
    x = 1,655.83

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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.