Home / 3,132.18-4,699.88-1,378.41

Finding the Fourth Proportional to 3,132.18, 4,699.88 and 1,378.41

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Solution

The fourth proportional to 3,132.18, 4,699.88 and 1,378.41 is: 2,068.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,132.18 : 4,699.88 = 1,378.41 : x
  2. Step 2: Convert to fraction form
    3,132.18/4,699.88 = 1,378.41/x
  3. Step 3: Cross multiply
    3,132.18x = 4,699.88 × 1,378.41
  4. Step 4: Simplify right side
    3,132.18x = 6,478,361.59
  5. Step 5: Solve for x
    x = 6,478,361.59/3,132.18
  6. Step 6: Final answer
    x = 2,068.32

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1.5x scale

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.