Home / 3,178.91-4,386.48-1,762.53

Finding the Fourth Proportional to 3,178.91, 4,386.48 and 1,762.53

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Solution

The fourth proportional to 3,178.91, 4,386.48 and 1,762.53 is: 2,432.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,178.91 : 4,386.48 = 1,762.53 : x
  2. Step 2: Convert to fraction form
    3,178.91/4,386.48 = 1,762.53/x
  3. Step 3: Cross multiply
    3,178.91x = 4,386.48 × 1,762.53
  4. Step 4: Simplify right side
    3,178.91x = 7,731,302.59
  5. Step 5: Solve for x
    x = 7,731,302.59/3,178.91
  6. Step 6: Final answer
    x = 2,432.06

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.