Home / 3,190.53-4,403.85-1,931.59

Finding the Fourth Proportional to 3,190.53, 4,403.85 and 1,931.59

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Solution

The fourth proportional to 3,190.53, 4,403.85 and 1,931.59 is: 2,666.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,190.53 : 4,403.85 = 1,931.59 : x
  2. Step 2: Convert to fraction form
    3,190.53/4,403.85 = 1,931.59/x
  3. Step 3: Cross multiply
    3,190.53x = 4,403.85 × 1,931.59
  4. Step 4: Simplify right side
    3,190.53x = 8,506,432.62
  5. Step 5: Solve for x
    x = 8,506,432.62/3,190.53
  6. Step 6: Final answer
    x = 2,666.15

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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.