Home / 5,787.40-8,681.18-4,157.80

Finding the Fourth Proportional to 5,787.40, 8,681.18 and 4,157.80

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Solution

The fourth proportional to 5,787.40, 8,681.18 and 4,157.80 is: 6,236.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,787.40 : 8,681.18 = 4,157.80 : x
  2. Step 2: Convert to fraction form
    5,787.40/8,681.18 = 4,157.80/x
  3. Step 3: Cross multiply
    5,787.40x = 8,681.18 × 4,157.80
  4. Step 4: Simplify right side
    5,787.40x = 36,094,610.20
  5. Step 5: Solve for x
    x = 36,094,610.20/5,787.40
  6. Step 6: Final answer
    x = 6,236.76

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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.