Home / 1,377.42-2,066.38-403.46

Finding the Fourth Proportional to 1,377.42, 2,066.38 and 403.46

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Solution

The fourth proportional to 1,377.42, 2,066.38 and 403.46 is: 605.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,377.42 : 2,066.38 = 403.46 : x
  2. Step 2: Convert to fraction form
    1,377.42/2,066.38 = 403.46/x
  3. Step 3: Cross multiply
    1,377.42x = 2,066.38 × 403.46
  4. Step 4: Simplify right side
    1,377.42x = 833,701.67
  5. Step 5: Solve for x
    x = 833,701.67/1,377.42
  6. Step 6: Final answer
    x = 605.26

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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.