Home / 3,491.40-4,820.36-2,166.52

Finding the Fourth Proportional to 3,491.40, 4,820.36 and 2,166.52

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Solution

The fourth proportional to 3,491.40, 4,820.36 and 2,166.52 is: 2,991.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,491.40 : 4,820.36 = 2,166.52 : x
  2. Step 2: Convert to fraction form
    3,491.40/4,820.36 = 2,166.52/x
  3. Step 3: Cross multiply
    3,491.40x = 4,820.36 × 2,166.52
  4. Step 4: Simplify right side
    3,491.40x = 10,443,406.35
  5. Step 5: Solve for x
    x = 10,443,406.35/3,491.40
  6. Step 6: Final answer
    x = 2,991.18

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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.