Home / 2,490.84-3,443.58-1,868.76

Finding the Fourth Proportional to 2,490.84, 3,443.58 and 1,868.76

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Solution

The fourth proportional to 2,490.84, 3,443.58 and 1,868.76 is: 2,583.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,490.84 : 3,443.58 = 1,868.76 : x
  2. Step 2: Convert to fraction form
    2,490.84/3,443.58 = 1,868.76/x
  3. Step 3: Cross multiply
    2,490.84x = 3,443.58 × 1,868.76
  4. Step 4: Simplify right side
    2,490.84x = 6,435,224.56
  5. Step 5: Solve for x
    x = 6,435,224.56/2,490.84
  6. Step 6: Final answer
    x = 2,583.56

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Half scale
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Double scale
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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.