Home / 3,047.60-4,193.16-2,853.20

Finding the Fourth Proportional to 3,047.60, 4,193.16 and 2,853.20

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Solution

The fourth proportional to 3,047.60, 4,193.16 and 2,853.20 is: 3,925.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,047.60 : 4,193.16 = 2,853.20 : x
  2. Step 2: Convert to fraction form
    3,047.60/4,193.16 = 2,853.20/x
  3. Step 3: Cross multiply
    3,047.60x = 4,193.16 × 2,853.20
  4. Step 4: Simplify right side
    3,047.60x = 11,963,924.11
  5. Step 5: Solve for x
    x = 11,963,924.11/3,047.60
  6. Step 6: Final answer
    x = 3,925.69

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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.