Home / 3,180.71-4,389.37-1,764.35

Finding the Fourth Proportional to 3,180.71, 4,389.37 and 1,764.35

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Solution

The fourth proportional to 3,180.71, 4,389.37 and 1,764.35 is: 2,434.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,180.71 : 4,389.37 = 1,764.35 : x
  2. Step 2: Convert to fraction form
    3,180.71/4,389.37 = 1,764.35/x
  3. Step 3: Cross multiply
    3,180.71x = 4,389.37 × 1,764.35
  4. Step 4: Simplify right side
    3,180.71x = 7,744,368.53
  5. Step 5: Solve for x
    x = 7,744,368.53/3,180.71
  6. Step 6: Final answer
    x = 2,434.80

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1.5x scale

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.