Home / 2,391.12-3,298.32-1,458

Finding the Fourth Proportional to 2,391.12, 3,298.32 and 1,458

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Solution

The fourth proportional to 2,391.12, 3,298.32 and 1,458 is: 2,011.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,391.12 : 3,298.32 = 1,458 : x
  2. Step 2: Convert to fraction form
    2,391.12/3,298.32 = 1,458/x
  3. Step 3: Cross multiply
    2,391.12x = 3,298.32 × 1,458
  4. Step 4: Simplify right side
    2,391.12x = 4,808,950.56
  5. Step 5: Solve for x
    x = 4,808,950.56/2,391.12
  6. Step 6: Final answer
    x = 2,011.17

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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.