Home / 1,330.52-1,985.72-1,295.96

Finding the Fourth Proportional to 1,330.52, 1,985.72 and 1,295.96

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Solution

The fourth proportional to 1,330.52, 1,985.72 and 1,295.96 is: 1,934.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,330.52 : 1,985.72 = 1,295.96 : x
  2. Step 2: Convert to fraction form
    1,330.52/1,985.72 = 1,295.96/x
  3. Step 3: Cross multiply
    1,330.52x = 1,985.72 × 1,295.96
  4. Step 4: Simplify right side
    1,330.52x = 2,573,413.69
  5. Step 5: Solve for x
    x = 2,573,413.69/1,330.52
  6. Step 6: Final answer
    x = 1,934.14

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.