Home / 5,143.32-7,713.38-1,855.99

Finding the Fourth Proportional to 5,143.32, 7,713.38 and 1,855.99

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Solution

The fourth proportional to 5,143.32, 7,713.38 and 1,855.99 is: 2,783.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,143.32 : 7,713.38 = 1,855.99 : x
  2. Step 2: Convert to fraction form
    5,143.32/7,713.38 = 1,855.99/x
  3. Step 3: Cross multiply
    5,143.32x = 7,713.38 × 1,855.99
  4. Step 4: Simplify right side
    5,143.32x = 14,315,941.50
  5. Step 5: Solve for x
    x = 14,315,941.50/5,143.32
  6. Step 6: Final answer
    x = 2,783.40

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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.