Home / 3,690.10-5,528.97-2,915.13

Finding the Fourth Proportional to 3,690.10, 5,528.97 and 2,915.13

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Solution

The fourth proportional to 3,690.10, 5,528.97 and 2,915.13 is: 4,367.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,690.10 : 5,528.97 = 2,915.13 : x
  2. Step 2: Convert to fraction form
    3,690.10/5,528.97 = 2,915.13/x
  3. Step 3: Cross multiply
    3,690.10x = 5,528.97 × 2,915.13
  4. Step 4: Simplify right side
    3,690.10x = 16,117,666.32
  5. Step 5: Solve for x
    x = 16,117,666.32/3,690.10
  6. Step 6: Final answer
    x = 4,367.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.