Home / 5,417.40-8,119.70-4,047.80

Finding the Fourth Proportional to 5,417.40, 8,119.70 and 4,047.80

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Solution

The fourth proportional to 5,417.40, 8,119.70 and 4,047.80 is: 6,066.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,417.40 : 8,119.70 = 4,047.80 : x
  2. Step 2: Convert to fraction form
    5,417.40/8,119.70 = 4,047.80/x
  3. Step 3: Cross multiply
    5,417.40x = 8,119.70 × 4,047.80
  4. Step 4: Simplify right side
    5,417.40x = 32,866,921.66
  5. Step 5: Solve for x
    x = 32,866,921.66/5,417.40
  6. Step 6: Final answer
    x = 6,066.92

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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.