Home / 1,377.04-2,065.70-403.16

Finding the Fourth Proportional to 1,377.04, 2,065.70 and 403.16

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Solution

The fourth proportional to 1,377.04, 2,065.70 and 403.16 is: 604.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,377.04 : 2,065.70 = 403.16 : x
  2. Step 2: Convert to fraction form
    1,377.04/2,065.70 = 403.16/x
  3. Step 3: Cross multiply
    1,377.04x = 2,065.70 × 403.16
  4. Step 4: Simplify right side
    1,377.04x = 832,807.61
  5. Step 5: Solve for x
    x = 832,807.61/1,377.04
  6. Step 6: Final answer
    x = 604.78

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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.