Home / 1,817.64-2,724.28-841.68

Finding the Fourth Proportional to 1,817.64, 2,724.28 and 841.68

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Solution

The fourth proportional to 1,817.64, 2,724.28 and 841.68 is: 1,261.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,817.64 : 2,724.28 = 841.68 : x
  2. Step 2: Convert to fraction form
    1,817.64/2,724.28 = 841.68/x
  3. Step 3: Cross multiply
    1,817.64x = 2,724.28 × 841.68
  4. Step 4: Simplify right side
    1,817.64x = 2,292,971.99
  5. Step 5: Solve for x
    x = 2,292,971.99/1,817.64
  6. Step 6: Final answer
    x = 1,261.51

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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.