Home / 5,637.93-8,456.59-1,939.78

Finding the Fourth Proportional to 5,637.93, 8,456.59 and 1,939.78

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Solution

The fourth proportional to 5,637.93, 8,456.59 and 1,939.78 is: 2,909.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,637.93 : 8,456.59 = 1,939.78 : x
  2. Step 2: Convert to fraction form
    5,637.93/8,456.59 = 1,939.78/x
  3. Step 3: Cross multiply
    5,637.93x = 8,456.59 × 1,939.78
  4. Step 4: Simplify right side
    5,637.93x = 16,403,924.15
  5. Step 5: Solve for x
    x = 16,403,924.15/5,637.93
  6. Step 6: Final answer
    x = 2,909.57

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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.