Home / 1,688.50-2,330.38-1,614.70

Finding the Fourth Proportional to 1,688.50, 2,330.38 and 1,614.70

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Solution

The fourth proportional to 1,688.50, 2,330.38 and 1,614.70 is: 2,228.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,688.50 : 2,330.38 = 1,614.70 : x
  2. Step 2: Convert to fraction form
    1,688.50/2,330.38 = 1,614.70/x
  3. Step 3: Cross multiply
    1,688.50x = 2,330.38 × 1,614.70
  4. Step 4: Simplify right side
    1,688.50x = 3,762,864.59
  5. Step 5: Solve for x
    x = 3,762,864.59/1,688.50
  6. Step 6: Final answer
    x = 2,228.53

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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.