Home / 5,435.04-8,143-3,788.40

Finding the Fourth Proportional to 5,435.04, 8,143 and 3,788.40

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Solution

The fourth proportional to 5,435.04, 8,143 and 3,788.40 is: 5,675.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,435.04 : 8,143 = 3,788.40 : x
  2. Step 2: Convert to fraction form
    5,435.04/8,143 = 3,788.40/x
  3. Step 3: Cross multiply
    5,435.04x = 8,143 × 3,788.40
  4. Step 4: Simplify right side
    5,435.04x = 30,848,941.20
  5. Step 5: Solve for x
    x = 30,848,941.20/5,435.04
  6. Step 6: Final answer
    x = 5,675.94

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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.