Home / 1,405.04-2,110.30-1,145.23

Finding the Fourth Proportional to 1,405.04, 2,110.30 and 1,145.23

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Solution

The fourth proportional to 1,405.04, 2,110.30 and 1,145.23 is: 1,720.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,405.04 : 2,110.30 = 1,145.23 : x
  2. Step 2: Convert to fraction form
    1,405.04/2,110.30 = 1,145.23/x
  3. Step 3: Cross multiply
    1,405.04x = 2,110.30 × 1,145.23
  4. Step 4: Simplify right side
    1,405.04x = 2,416,778.42
  5. Step 5: Solve for x
    x = 2,416,778.42/1,405.04
  6. Step 6: Final answer
    x = 1,720.08

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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.