Home / 2,509.14-3,462.46-1,390.02

Finding the Fourth Proportional to 2,509.14, 3,462.46 and 1,390.02

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Solution

The fourth proportional to 2,509.14, 3,462.46 and 1,390.02 is: 1,918.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,509.14 : 3,462.46 = 1,390.02 : x
  2. Step 2: Convert to fraction form
    2,509.14/3,462.46 = 1,390.02/x
  3. Step 3: Cross multiply
    2,509.14x = 3,462.46 × 1,390.02
  4. Step 4: Simplify right side
    2,509.14x = 4,812,888.65
  5. Step 5: Solve for x
    x = 4,812,888.65/2,509.14
  6. Step 6: Final answer
    x = 1,918.14

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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.