Home / 3,191.32-4,777.26-2,312.20

Finding the Fourth Proportional to 3,191.32, 4,777.26 and 2,312.20

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Solution

The fourth proportional to 3,191.32, 4,777.26 and 2,312.20 is: 3,461.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,191.32 : 4,777.26 = 2,312.20 : x
  2. Step 2: Convert to fraction form
    3,191.32/4,777.26 = 2,312.20/x
  3. Step 3: Cross multiply
    3,191.32x = 4,777.26 × 2,312.20
  4. Step 4: Simplify right side
    3,191.32x = 11,045,980.57
  5. Step 5: Solve for x
    x = 11,045,980.57/3,191.32
  6. Step 6: Final answer
    x = 3,461.26

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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.