Home / 4,690.07-6,473.58-2,920.64

Finding the Fourth Proportional to 4,690.07, 6,473.58 and 2,920.64

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Solution

The fourth proportional to 4,690.07, 6,473.58 and 2,920.64 is: 4,031.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,690.07 : 6,473.58 = 2,920.64 : x
  2. Step 2: Convert to fraction form
    4,690.07/6,473.58 = 2,920.64/x
  3. Step 3: Cross multiply
    4,690.07x = 6,473.58 × 2,920.64
  4. Step 4: Simplify right side
    4,690.07x = 18,906,996.69
  5. Step 5: Solve for x
    x = 18,906,996.69/4,690.07
  6. Step 6: Final answer
    x = 4,031.28

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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.