Home / 4,872.60-6,724.98-2,985.30

Finding the Fourth Proportional to 4,872.60, 6,724.98 and 2,985.30

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Solution

The fourth proportional to 4,872.60, 6,724.98 and 2,985.30 is: 4,120.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,872.60 : 6,724.98 = 2,985.30 : x
  2. Step 2: Convert to fraction form
    4,872.60/6,724.98 = 2,985.30/x
  3. Step 3: Cross multiply
    4,872.60x = 6,724.98 × 2,985.30
  4. Step 4: Simplify right side
    4,872.60x = 20,076,082.79
  5. Step 5: Solve for x
    x = 20,076,082.79/4,872.60
  6. Step 6: Final answer
    x = 4,120.20

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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.