Home / 5,403.81-7,454.90-3,385.98

Finding the Fourth Proportional to 5,403.81, 7,454.90 and 3,385.98

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Solution

The fourth proportional to 5,403.81, 7,454.90 and 3,385.98 is: 4,671.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,403.81 : 7,454.90 = 3,385.98 : x
  2. Step 2: Convert to fraction form
    5,403.81/7,454.90 = 3,385.98/x
  3. Step 3: Cross multiply
    5,403.81x = 7,454.90 × 3,385.98
  4. Step 4: Simplify right side
    5,403.81x = 25,242,142.30
  5. Step 5: Solve for x
    x = 25,242,142.30/5,403.81
  6. Step 6: Final answer
    x = 4,671.18

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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.