Home / 3,180.39-4,389.02-1,764.10

Finding the Fourth Proportional to 3,180.39, 4,389.02 and 1,764.10

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Solution

The fourth proportional to 3,180.39, 4,389.02 and 1,764.10 is: 2,434.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,180.39 : 4,389.02 = 1,764.10 : x
  2. Step 2: Convert to fraction form
    3,180.39/4,389.02 = 1,764.10/x
  3. Step 3: Cross multiply
    3,180.39x = 4,389.02 × 1,764.10
  4. Step 4: Simplify right side
    3,180.39x = 7,742,670.18
  5. Step 5: Solve for x
    x = 7,742,670.18/3,180.39
  6. Step 6: Final answer
    x = 2,434.50

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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.