Home / 3,088.30-4,263.22-1,970.70

Finding the Fourth Proportional to 3,088.30, 4,263.22 and 1,970.70

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Solution

The fourth proportional to 3,088.30, 4,263.22 and 1,970.70 is: 2,720.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,088.30 : 4,263.22 = 1,970.70 : x
  2. Step 2: Convert to fraction form
    3,088.30/4,263.22 = 1,970.70/x
  3. Step 3: Cross multiply
    3,088.30x = 4,263.22 × 1,970.70
  4. Step 4: Simplify right side
    3,088.30x = 8,401,527.65
  5. Step 5: Solve for x
    x = 8,401,527.65/3,088.30
  6. Step 6: Final answer
    x = 2,720.44

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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.