Home / 3,132.80-4,697.40-941.20

Finding the Fourth Proportional to 3,132.80, 4,697.40 and 941.20

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Solution

The fourth proportional to 3,132.80, 4,697.40 and 941.20 is: 1,411.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,132.80 : 4,697.40 = 941.20 : x
  2. Step 2: Convert to fraction form
    3,132.80/4,697.40 = 941.20/x
  3. Step 3: Cross multiply
    3,132.80x = 4,697.40 × 941.20
  4. Step 4: Simplify right side
    3,132.80x = 4,421,192.88
  5. Step 5: Solve for x
    x = 4,421,192.88/3,132.80
  6. Step 6: Final answer
    x = 1,411.26

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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.