Home / 5,617.17-8,426.50-1,918.40

Finding the Fourth Proportional to 5,617.17, 8,426.50 and 1,918.40

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Solution

The fourth proportional to 5,617.17, 8,426.50 and 1,918.40 is: 2,877.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,617.17 : 8,426.50 = 1,918.40 : x
  2. Step 2: Convert to fraction form
    5,617.17/8,426.50 = 1,918.40/x
  3. Step 3: Cross multiply
    5,617.17x = 8,426.50 × 1,918.40
  4. Step 4: Simplify right side
    5,617.17x = 16,165,413.87
  5. Step 5: Solve for x
    x = 16,165,413.87/5,617.17
  6. Step 6: Final answer
    x = 2,877.86

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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.