Home / 5,377.60-8,056.80-4,398.40

Finding the Fourth Proportional to 5,377.60, 8,056.80 and 4,398.40

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Solution

The fourth proportional to 5,377.60, 8,056.80 and 4,398.40 is: 6,589.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,377.60 : 8,056.80 = 4,398.40 : x
  2. Step 2: Convert to fraction form
    5,377.60/8,056.80 = 4,398.40/x
  3. Step 3: Cross multiply
    5,377.60x = 8,056.80 × 4,398.40
  4. Step 4: Simplify right side
    5,377.60x = 35,437,029.12
  5. Step 5: Solve for x
    x = 35,437,029.12/5,377.60
  6. Step 6: Final answer
    x = 6,589.75

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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.