Home / 1,688.69-2,332.06-1,099.57

Finding the Fourth Proportional to 1,688.69, 2,332.06 and 1,099.57

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Solution

The fourth proportional to 1,688.69, 2,332.06 and 1,099.57 is: 1,518.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,688.69 : 2,332.06 = 1,099.57 : x
  2. Step 2: Convert to fraction form
    1,688.69/2,332.06 = 1,099.57/x
  3. Step 3: Cross multiply
    1,688.69x = 2,332.06 × 1,099.57
  4. Step 4: Simplify right side
    1,688.69x = 2,564,246.06
  5. Step 5: Solve for x
    x = 2,564,246.06/1,688.69
  6. Step 6: Final answer
    x = 1,518.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.