Home / 3,521.76-5,280.08-2,290.40

Finding the Fourth Proportional to 3,521.76, 5,280.08 and 2,290.40

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Solution

The fourth proportional to 3,521.76, 5,280.08 and 2,290.40 is: 3,433.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,521.76 : 5,280.08 = 2,290.40 : x
  2. Step 2: Convert to fraction form
    3,521.76/5,280.08 = 2,290.40/x
  3. Step 3: Cross multiply
    3,521.76x = 5,280.08 × 2,290.40
  4. Step 4: Simplify right side
    3,521.76x = 12,093,495.23
  5. Step 5: Solve for x
    x = 12,093,495.23/3,521.76
  6. Step 6: Final answer
    x = 3,433.94

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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.