Home / 1,688.99-2,330.73-942.98

Finding the Fourth Proportional to 1,688.99, 2,330.73 and 942.98

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Solution

The fourth proportional to 1,688.99, 2,330.73 and 942.98 is: 1,301.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,688.99 : 2,330.73 = 942.98 : x
  2. Step 2: Convert to fraction form
    1,688.99/2,330.73 = 942.98/x
  3. Step 3: Cross multiply
    1,688.99x = 2,330.73 × 942.98
  4. Step 4: Simplify right side
    1,688.99x = 2,197,820.12
  5. Step 5: Solve for x
    x = 2,197,820.12/1,688.99
  6. Step 6: Final answer
    x = 1,301.27

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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.