Home / 5,274.90-7,279.52-2,885.01

Finding the Fourth Proportional to 5,274.90, 7,279.52 and 2,885.01

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Solution

The fourth proportional to 5,274.90, 7,279.52 and 2,885.01 is: 3,981.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,274.90 : 7,279.52 = 2,885.01 : x
  2. Step 2: Convert to fraction form
    5,274.90/7,279.52 = 2,885.01/x
  3. Step 3: Cross multiply
    5,274.90x = 7,279.52 × 2,885.01
  4. Step 4: Simplify right side
    5,274.90x = 21,001,473.57
  5. Step 5: Solve for x
    x = 21,001,473.57/5,274.90
  6. Step 6: Final answer
    x = 3,981.40

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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.