Home / 4,877.47-6,730.89-2,639.35

Finding the Fourth Proportional to 4,877.47, 6,730.89 and 2,639.35

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Solution

The fourth proportional to 4,877.47, 6,730.89 and 2,639.35 is: 3,642.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,877.47 : 6,730.89 = 2,639.35 : x
  2. Step 2: Convert to fraction form
    4,877.47/6,730.89 = 2,639.35/x
  3. Step 3: Cross multiply
    4,877.47x = 6,730.89 × 2,639.35
  4. Step 4: Simplify right side
    4,877.47x = 17,765,174.52
  5. Step 5: Solve for x
    x = 17,765,174.52/4,877.47
  6. Step 6: Final answer
    x = 3,642.29

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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.