Home / 2,776.20-4,164.37-1,315.50

Finding the Fourth Proportional to 2,776.20, 4,164.37 and 1,315.50

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Solution

The fourth proportional to 2,776.20, 4,164.37 and 1,315.50 is: 1,973.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,776.20 : 4,164.37 = 1,315.50 : x
  2. Step 2: Convert to fraction form
    2,776.20/4,164.37 = 1,315.50/x
  3. Step 3: Cross multiply
    2,776.20x = 4,164.37 × 1,315.50
  4. Step 4: Simplify right side
    2,776.20x = 5,478,228.74
  5. Step 5: Solve for x
    x = 5,478,228.74/2,776.20
  6. Step 6: Final answer
    x = 1,973.28

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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.