Home / 4,921.36-6,790.58-2,931.58

Finding the Fourth Proportional to 4,921.36, 6,790.58 and 2,931.58

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Solution

The fourth proportional to 4,921.36, 6,790.58 and 2,931.58 is: 4,045.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,921.36 : 6,790.58 = 2,931.58 : x
  2. Step 2: Convert to fraction form
    4,921.36/6,790.58 = 2,931.58/x
  3. Step 3: Cross multiply
    4,921.36x = 6,790.58 × 2,931.58
  4. Step 4: Simplify right side
    4,921.36x = 19,907,128.52
  5. Step 5: Solve for x
    x = 19,907,128.52/4,921.36
  6. Step 6: Final answer
    x = 4,045.05

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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.