Home / 1,423.50-2,129.14-1,029.06

Finding the Fourth Proportional to 1,423.50, 2,129.14 and 1,029.06

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Solution

The fourth proportional to 1,423.50, 2,129.14 and 1,029.06 is: 1,539.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,423.50 : 2,129.14 = 1,029.06 : x
  2. Step 2: Convert to fraction form
    1,423.50/2,129.14 = 1,029.06/x
  3. Step 3: Cross multiply
    1,423.50x = 2,129.14 × 1,029.06
  4. Step 4: Simplify right side
    1,423.50x = 2,191,022.08
  5. Step 5: Solve for x
    x = 2,191,022.08/1,423.50
  6. Step 6: Final answer
    x = 1,539.18

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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.