Home / 3,140.02-4,707.12-1,190.92

Finding the Fourth Proportional to 3,140.02, 4,707.12 and 1,190.92

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Solution

The fourth proportional to 3,140.02, 4,707.12 and 1,190.92 is: 1,785.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,140.02 : 4,707.12 = 1,190.92 : x
  2. Step 2: Convert to fraction form
    3,140.02/4,707.12 = 1,190.92/x
  3. Step 3: Cross multiply
    3,140.02x = 4,707.12 × 1,190.92
  4. Step 4: Simplify right side
    3,140.02x = 5,605,803.35
  5. Step 5: Solve for x
    x = 5,605,803.35/3,140.02
  6. Step 6: Final answer
    x = 1,785.28

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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.