Home / 3,430.49-5,140.85-1,867.10

Finding the Fourth Proportional to 3,430.49, 5,140.85 and 1,867.10

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Solution

The fourth proportional to 3,430.49, 5,140.85 and 1,867.10 is: 2,797.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,430.49 : 5,140.85 = 1,867.10 : x
  2. Step 2: Convert to fraction form
    3,430.49/5,140.85 = 1,867.10/x
  3. Step 3: Cross multiply
    3,430.49x = 5,140.85 × 1,867.10
  4. Step 4: Simplify right side
    3,430.49x = 9,598,446.00
  5. Step 5: Solve for x
    x = 9,598,446.00/3,430.49
  6. Step 6: Final answer
    x = 2,797.99

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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.