Home / 1,424.55-2,137.23-693.93

Finding the Fourth Proportional to 1,424.55, 2,137.23 and 693.93

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Solution

The fourth proportional to 1,424.55, 2,137.23 and 693.93 is: 1,041.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,424.55 : 2,137.23 = 693.93 : x
  2. Step 2: Convert to fraction form
    1,424.55/2,137.23 = 693.93/x
  3. Step 3: Cross multiply
    1,424.55x = 2,137.23 × 693.93
  4. Step 4: Simplify right side
    1,424.55x = 1,483,088.01
  5. Step 5: Solve for x
    x = 1,483,088.01/1,424.55
  6. Step 6: Final answer
    x = 1,041.09

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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.