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Finding the Fourth Proportional to 2,424.75, 3,637.20 and 693.38

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Solution

The fourth proportional to 2,424.75, 3,637.20 and 693.38 is: 1,040.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,424.75 : 3,637.20 = 693.38 : x
  2. Step 2: Convert to fraction form
    2,424.75/3,637.20 = 693.38/x
  3. Step 3: Cross multiply
    2,424.75x = 3,637.20 × 693.38
  4. Step 4: Simplify right side
    2,424.75x = 2,521,943.55
  5. Step 5: Solve for x
    x = 2,521,943.55/2,424.75
  6. Step 6: Final answer
    x = 1,040.08

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1.5x scale

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.