Home / 1,700.39-2,342.82-1,328.60

Finding the Fourth Proportional to 1,700.39, 2,342.82 and 1,328.60

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Solution

The fourth proportional to 1,700.39, 2,342.82 and 1,328.60 is: 1,830.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,700.39 : 2,342.82 = 1,328.60 : x
  2. Step 2: Convert to fraction form
    1,700.39/2,342.82 = 1,328.60/x
  3. Step 3: Cross multiply
    1,700.39x = 2,342.82 × 1,328.60
  4. Step 4: Simplify right side
    1,700.39x = 3,112,681.49
  5. Step 5: Solve for x
    x = 3,112,681.49/1,700.39
  6. Step 6: Final answer
    x = 1,830.57

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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.