Home / 2,776.32-4,161.06-1,312.44

Finding the Fourth Proportional to 2,776.32, 4,161.06 and 1,312.44

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Solution

The fourth proportional to 2,776.32, 4,161.06 and 1,312.44 is: 1,967.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,776.32 : 4,161.06 = 1,312.44 : x
  2. Step 2: Convert to fraction form
    2,776.32/4,161.06 = 1,312.44/x
  3. Step 3: Cross multiply
    2,776.32x = 4,161.06 × 1,312.44
  4. Step 4: Simplify right side
    2,776.32x = 5,461,141.59
  5. Step 5: Solve for x
    x = 5,461,141.59/2,776.32
  6. Step 6: Final answer
    x = 1,967.04

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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.