Home / 1,406.40-2,106.36-1,016.88

Finding the Fourth Proportional to 1,406.40, 2,106.36 and 1,016.88

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Solution

The fourth proportional to 1,406.40, 2,106.36 and 1,016.88 is: 1,522.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,406.40 : 2,106.36 = 1,016.88 : x
  2. Step 2: Convert to fraction form
    1,406.40/2,106.36 = 1,016.88/x
  3. Step 3: Cross multiply
    1,406.40x = 2,106.36 × 1,016.88
  4. Step 4: Simplify right side
    1,406.40x = 2,141,915.36
  5. Step 5: Solve for x
    x = 2,141,915.36/1,406.40
  6. Step 6: Final answer
    x = 1,522.98

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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.