Home / 3,148.34-4,345.35-2,156.36

Finding the Fourth Proportional to 3,148.34, 4,345.35 and 2,156.36

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Solution

The fourth proportional to 3,148.34, 4,345.35 and 2,156.36 is: 2,976.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,148.34 : 4,345.35 = 2,156.36 : x
  2. Step 2: Convert to fraction form
    3,148.34/4,345.35 = 2,156.36/x
  3. Step 3: Cross multiply
    3,148.34x = 4,345.35 × 2,156.36
  4. Step 4: Simplify right side
    3,148.34x = 9,370,138.93
  5. Step 5: Solve for x
    x = 9,370,138.93/3,148.34
  6. Step 6: Final answer
    x = 2,976.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.