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Finding the Fourth Proportional to 1,609.04, 2,413.56 and 840.08

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Solution

The fourth proportional to 1,609.04, 2,413.56 and 840.08 is: 1,260.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,609.04 : 2,413.56 = 840.08 : x
  2. Step 2: Convert to fraction form
    1,609.04/2,413.56 = 840.08/x
  3. Step 3: Cross multiply
    1,609.04x = 2,413.56 × 840.08
  4. Step 4: Simplify right side
    1,609.04x = 2,027,583.48
  5. Step 5: Solve for x
    x = 2,027,583.48/1,609.04
  6. Step 6: Final answer
    x = 1,260.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.