Home / 4,877.21-6,730.51-2,639.04

Finding the Fourth Proportional to 4,877.21, 6,730.51 and 2,639.04

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Solution

The fourth proportional to 4,877.21, 6,730.51 and 2,639.04 is: 3,641.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,877.21 : 6,730.51 = 2,639.04 : x
  2. Step 2: Convert to fraction form
    4,877.21/6,730.51 = 2,639.04/x
  3. Step 3: Cross multiply
    4,877.21x = 6,730.51 × 2,639.04
  4. Step 4: Simplify right side
    4,877.21x = 17,762,085.11
  5. Step 5: Solve for x
    x = 17,762,085.11/4,877.21
  6. Step 6: Final answer
    x = 3,641.85

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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.