Home / 3,119.24-4,303.61-2,281.10

Finding the Fourth Proportional to 3,119.24, 4,303.61 and 2,281.10

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Solution

The fourth proportional to 3,119.24, 4,303.61 and 2,281.10 is: 3,147.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,119.24 : 4,303.61 = 2,281.10 : x
  2. Step 2: Convert to fraction form
    3,119.24/4,303.61 = 2,281.10/x
  3. Step 3: Cross multiply
    3,119.24x = 4,303.61 × 2,281.10
  4. Step 4: Simplify right side
    3,119.24x = 9,816,931.85
  5. Step 5: Solve for x
    x = 9,816,931.85/3,119.24
  6. Step 6: Final answer
    x = 3,147.22

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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.