Home / 4,718.40-7,077.60-3,406.20

Finding the Fourth Proportional to 4,718.40, 7,077.60 and 3,406.20

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Solution

The fourth proportional to 4,718.40, 7,077.60 and 3,406.20 is: 5,109.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,718.40 : 7,077.60 = 3,406.20 : x
  2. Step 2: Convert to fraction form
    4,718.40/7,077.60 = 3,406.20/x
  3. Step 3: Cross multiply
    4,718.40x = 7,077.60 × 3,406.20
  4. Step 4: Simplify right side
    4,718.40x = 24,107,721.12
  5. Step 5: Solve for x
    x = 24,107,721.12/4,718.40
  6. Step 6: Final answer
    x = 5,109.30

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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.