Home / 2,363.12-3,261.12-1,315.20

Finding the Fourth Proportional to 2,363.12, 3,261.12 and 1,315.20

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Solution

The fourth proportional to 2,363.12, 3,261.12 and 1,315.20 is: 1,814.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,363.12 : 3,261.12 = 1,315.20 : x
  2. Step 2: Convert to fraction form
    2,363.12/3,261.12 = 1,315.20/x
  3. Step 3: Cross multiply
    2,363.12x = 3,261.12 × 1,315.20
  4. Step 4: Simplify right side
    2,363.12x = 4,289,025.02
  5. Step 5: Solve for x
    x = 4,289,025.02/2,363.12
  6. Step 6: Final answer
    x = 1,814.98

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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.