Home / 1,401.01-2,099.66-578.81

Finding the Fourth Proportional to 1,401.01, 2,099.66 and 578.81

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Solution

The fourth proportional to 1,401.01, 2,099.66 and 578.81 is: 867.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,401.01 : 2,099.66 = 578.81 : x
  2. Step 2: Convert to fraction form
    1,401.01/2,099.66 = 578.81/x
  3. Step 3: Cross multiply
    1,401.01x = 2,099.66 × 578.81
  4. Step 4: Simplify right side
    1,401.01x = 1,215,304.20
  5. Step 5: Solve for x
    x = 1,215,304.20/1,401.01
  6. Step 6: Final answer
    x = 867.45

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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.