Home / 3,133.60-4,701.28-1,571.72

Finding the Fourth Proportional to 3,133.60, 4,701.28 and 1,571.72

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Solution

The fourth proportional to 3,133.60, 4,701.28 and 1,571.72 is: 2,358.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,133.60 : 4,701.28 = 1,571.72 : x
  2. Step 2: Convert to fraction form
    3,133.60/4,701.28 = 1,571.72/x
  3. Step 3: Cross multiply
    3,133.60x = 4,701.28 × 1,571.72
  4. Step 4: Simplify right side
    3,133.60x = 7,389,095.80
  5. Step 5: Solve for x
    x = 7,389,095.80/3,133.60
  6. Step 6: Final answer
    x = 2,358.02

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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.