Home / 2,310.48-3,188.58-1,426.80

Finding the Fourth Proportional to 2,310.48, 3,188.58 and 1,426.80

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Solution

The fourth proportional to 2,310.48, 3,188.58 and 1,426.80 is: 1,969.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,310.48 : 3,188.58 = 1,426.80 : x
  2. Step 2: Convert to fraction form
    2,310.48/3,188.58 = 1,426.80/x
  3. Step 3: Cross multiply
    2,310.48x = 3,188.58 × 1,426.80
  4. Step 4: Simplify right side
    2,310.48x = 4,549,465.94
  5. Step 5: Solve for x
    x = 4,549,465.94/2,310.48
  6. Step 6: Final answer
    x = 1,969.06

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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.