Home / 3,056.30-4,216.50-2,161.35

Finding the Fourth Proportional to 3,056.30, 4,216.50 and 2,161.35

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Solution

The fourth proportional to 3,056.30, 4,216.50 and 2,161.35 is: 2,981.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,056.30 : 4,216.50 = 2,161.35 : x
  2. Step 2: Convert to fraction form
    3,056.30/4,216.50 = 2,161.35/x
  3. Step 3: Cross multiply
    3,056.30x = 4,216.50 × 2,161.35
  4. Step 4: Simplify right side
    3,056.30x = 9,113,332.28
  5. Step 5: Solve for x
    x = 9,113,332.28/3,056.30
  6. Step 6: Final answer
    x = 2,981.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.