Home / 1,664.12-2,494.70-841.24

Finding the Fourth Proportional to 1,664.12, 2,494.70 and 841.24

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Solution

The fourth proportional to 1,664.12, 2,494.70 and 841.24 is: 1,261.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,664.12 : 2,494.70 = 841.24 : x
  2. Step 2: Convert to fraction form
    1,664.12/2,494.70 = 841.24/x
  3. Step 3: Cross multiply
    1,664.12x = 2,494.70 × 841.24
  4. Step 4: Simplify right side
    1,664.12x = 2,098,641.43
  5. Step 5: Solve for x
    x = 2,098,641.43/1,664.12
  6. Step 6: Final answer
    x = 1,261.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.