Home / 5,108.32-7,048.78-2,983.69

Finding the Fourth Proportional to 5,108.32, 7,048.78 and 2,983.69

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Solution

The fourth proportional to 5,108.32, 7,048.78 and 2,983.69 is: 4,117.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,108.32 : 7,048.78 = 2,983.69 : x
  2. Step 2: Convert to fraction form
    5,108.32/7,048.78 = 2,983.69/x
  3. Step 3: Cross multiply
    5,108.32x = 7,048.78 × 2,983.69
  4. Step 4: Simplify right side
    5,108.32x = 21,031,374.40
  5. Step 5: Solve for x
    x = 21,031,374.40/5,108.32
  6. Step 6: Final answer
    x = 4,117.08

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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.