Home / 4,980.52-6,872.88-2,885.32

Finding the Fourth Proportional to 4,980.52, 6,872.88 and 2,885.32

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Solution

The fourth proportional to 4,980.52, 6,872.88 and 2,885.32 is: 3,981.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,980.52 : 6,872.88 = 2,885.32 : x
  2. Step 2: Convert to fraction form
    4,980.52/6,872.88 = 2,885.32/x
  3. Step 3: Cross multiply
    4,980.52x = 6,872.88 × 2,885.32
  4. Step 4: Simplify right side
    4,980.52x = 19,830,458.12
  5. Step 5: Solve for x
    x = 19,830,458.12/4,980.52
  6. Step 6: Final answer
    x = 3,981.60

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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.