Home / 3,585.61-5,378.28-1,637.80

Finding the Fourth Proportional to 3,585.61, 5,378.28 and 1,637.80

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Solution

The fourth proportional to 3,585.61, 5,378.28 and 1,637.80 is: 2,456.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,585.61 : 5,378.28 = 1,637.80 : x
  2. Step 2: Convert to fraction form
    3,585.61/5,378.28 = 1,637.80/x
  3. Step 3: Cross multiply
    3,585.61x = 5,378.28 × 1,637.80
  4. Step 4: Simplify right side
    3,585.61x = 8,808,546.98
  5. Step 5: Solve for x
    x = 8,808,546.98/3,585.61
  6. Step 6: Final answer
    x = 2,456.64

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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.