Home / 5,645.40-8,460.90-4,340.40

Finding the Fourth Proportional to 5,645.40, 8,460.90 and 4,340.40

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Solution

The fourth proportional to 5,645.40, 8,460.90 and 4,340.40 is: 6,505.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,645.40 : 8,460.90 = 4,340.40 : x
  2. Step 2: Convert to fraction form
    5,645.40/8,460.90 = 4,340.40/x
  3. Step 3: Cross multiply
    5,645.40x = 8,460.90 × 4,340.40
  4. Step 4: Simplify right side
    5,645.40x = 36,723,690.36
  5. Step 5: Solve for x
    x = 36,723,690.36/5,645.40
  6. Step 6: Final answer
    x = 6,505.06

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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.