Home / 3,439.60-5,157.10-1,588.21

Finding the Fourth Proportional to 3,439.60, 5,157.10 and 1,588.21

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Solution

The fourth proportional to 3,439.60, 5,157.10 and 1,588.21 is: 2,381.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,439.60 : 5,157.10 = 1,588.21 : x
  2. Step 2: Convert to fraction form
    3,439.60/5,157.10 = 1,588.21/x
  3. Step 3: Cross multiply
    3,439.60x = 5,157.10 × 1,588.21
  4. Step 4: Simplify right side
    3,439.60x = 8,190,557.79
  5. Step 5: Solve for x
    x = 8,190,557.79/3,439.60
  6. Step 6: Final answer
    x = 2,381.25

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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.