Home / 3,143.72-4,717-1,295.24

Finding the Fourth Proportional to 3,143.72, 4,717 and 1,295.24

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Solution

The fourth proportional to 3,143.72, 4,717 and 1,295.24 is: 1,943.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,143.72 : 4,717 = 1,295.24 : x
  2. Step 2: Convert to fraction form
    3,143.72/4,717 = 1,295.24/x
  3. Step 3: Cross multiply
    3,143.72x = 4,717 × 1,295.24
  4. Step 4: Simplify right side
    3,143.72x = 6,109,647.08
  5. Step 5: Solve for x
    x = 6,109,647.08/3,143.72
  6. Step 6: Final answer
    x = 1,943.45

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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.