Home / 3,190.02-4,400.04-3,131.70

Finding the Fourth Proportional to 3,190.02, 4,400.04 and 3,131.70

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Solution

The fourth proportional to 3,190.02, 4,400.04 and 3,131.70 is: 4,319.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,190.02 : 4,400.04 = 3,131.70 : x
  2. Step 2: Convert to fraction form
    3,190.02/4,400.04 = 3,131.70/x
  3. Step 3: Cross multiply
    3,190.02x = 4,400.04 × 3,131.70
  4. Step 4: Simplify right side
    3,190.02x = 13,779,605.27
  5. Step 5: Solve for x
    x = 13,779,605.27/3,190.02
  6. Step 6: Final answer
    x = 4,319.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.