Home / 2,308.12-3,184.98-1,313.32

Finding the Fourth Proportional to 2,308.12, 3,184.98 and 1,313.32

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Solution

The fourth proportional to 2,308.12, 3,184.98 and 1,313.32 is: 1,812.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,308.12 : 3,184.98 = 1,313.32 : x
  2. Step 2: Convert to fraction form
    2,308.12/3,184.98 = 1,313.32/x
  3. Step 3: Cross multiply
    2,308.12x = 3,184.98 × 1,313.32
  4. Step 4: Simplify right side
    2,308.12x = 4,182,897.93
  5. Step 5: Solve for x
    x = 4,182,897.93/2,308.12
  6. Step 6: Final answer
    x = 1,812.25

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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.