Home / 2,402.87-3,315-1,458.31

Finding the Fourth Proportional to 2,402.87, 3,315 and 1,458.31

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Solution

The fourth proportional to 2,402.87, 3,315 and 1,458.31 is: 2,011.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,402.87 : 3,315 = 1,458.31 : x
  2. Step 2: Convert to fraction form
    2,402.87/3,315 = 1,458.31/x
  3. Step 3: Cross multiply
    2,402.87x = 3,315 × 1,458.31
  4. Step 4: Simplify right side
    2,402.87x = 4,834,297.65
  5. Step 5: Solve for x
    x = 4,834,297.65/2,402.87
  6. Step 6: Final answer
    x = 2,011.88

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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.