Home / 4,291.12-6,437.68-1,369.20

Finding the Fourth Proportional to 4,291.12, 6,437.68 and 1,369.20

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Solution

The fourth proportional to 4,291.12, 6,437.68 and 1,369.20 is: 2,054.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,291.12 : 6,437.68 = 1,369.20 : x
  2. Step 2: Convert to fraction form
    4,291.12/6,437.68 = 1,369.20/x
  3. Step 3: Cross multiply
    4,291.12x = 6,437.68 × 1,369.20
  4. Step 4: Simplify right side
    4,291.12x = 8,814,471.46
  5. Step 5: Solve for x
    x = 8,814,471.46/4,291.12
  6. Step 6: Final answer
    x = 2,054.12

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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.