Home / 3,316.28-4,575.29-1,989.50

Finding the Fourth Proportional to 3,316.28, 4,575.29 and 1,989.50

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Solution

The fourth proportional to 3,316.28, 4,575.29 and 1,989.50 is: 2,744.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,316.28 : 4,575.29 = 1,989.50 : x
  2. Step 2: Convert to fraction form
    3,316.28/4,575.29 = 1,989.50/x
  3. Step 3: Cross multiply
    3,316.28x = 4,575.29 × 1,989.50
  4. Step 4: Simplify right side
    3,316.28x = 9,102,506.63
  5. Step 5: Solve for x
    x = 9,102,506.63/3,316.28
  6. Step 6: Final answer
    x = 2,744.80

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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.