Home / 3,175.48-4,762.98-1,325.92

Finding the Fourth Proportional to 3,175.48, 4,762.98 and 1,325.92

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Solution

The fourth proportional to 3,175.48, 4,762.98 and 1,325.92 is: 1,988.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,175.48 : 4,762.98 = 1,325.92 : x
  2. Step 2: Convert to fraction form
    3,175.48/4,762.98 = 1,325.92/x
  3. Step 3: Cross multiply
    3,175.48x = 4,762.98 × 1,325.92
  4. Step 4: Simplify right side
    3,175.48x = 6,315,330.44
  5. Step 5: Solve for x
    x = 6,315,330.44/3,175.48
  6. Step 6: Final answer
    x = 1,988.78

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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.