Home / 2,357.65-3,253.81-1,309.72

Finding the Fourth Proportional to 2,357.65, 3,253.81 and 1,309.72

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Solution

The fourth proportional to 2,357.65, 3,253.81 and 1,309.72 is: 1,807.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,357.65 : 3,253.81 = 1,309.72 : x
  2. Step 2: Convert to fraction form
    2,357.65/3,253.81 = 1,309.72/x
  3. Step 3: Cross multiply
    2,357.65x = 3,253.81 × 1,309.72
  4. Step 4: Simplify right side
    2,357.65x = 4,261,560.49
  5. Step 5: Solve for x
    x = 4,261,560.49/2,357.65
  6. Step 6: Final answer
    x = 1,807.54

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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.