Home / 2,607.12-3,597.96-1,428.12

Finding the Fourth Proportional to 2,607.12, 3,597.96 and 1,428.12

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Solution

The fourth proportional to 2,607.12, 3,597.96 and 1,428.12 is: 1,970.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,607.12 : 3,597.96 = 1,428.12 : x
  2. Step 2: Convert to fraction form
    2,607.12/3,597.96 = 1,428.12/x
  3. Step 3: Cross multiply
    2,607.12x = 3,597.96 × 1,428.12
  4. Step 4: Simplify right side
    2,607.12x = 5,138,318.64
  5. Step 5: Solve for x
    x = 5,138,318.64/2,607.12
  6. Step 6: Final answer
    x = 1,970.88

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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.