Home / 1,423.64-2,124.66-1,386.73

Finding the Fourth Proportional to 1,423.64, 2,124.66 and 1,386.73

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Solution

The fourth proportional to 1,423.64, 2,124.66 and 1,386.73 is: 2,069.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,423.64 : 2,124.66 = 1,386.73 : x
  2. Step 2: Convert to fraction form
    1,423.64/2,124.66 = 1,386.73/x
  3. Step 3: Cross multiply
    1,423.64x = 2,124.66 × 1,386.73
  4. Step 4: Simplify right side
    1,423.64x = 2,946,337.62
  5. Step 5: Solve for x
    x = 2,946,337.62/1,423.64
  6. Step 6: Final answer
    x = 2,069.58

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These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.