Home / 3,477.84-5,215.39-1,397.30

Finding the Fourth Proportional to 3,477.84, 5,215.39 and 1,397.30

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Solution

The fourth proportional to 3,477.84, 5,215.39 and 1,397.30 is: 2,095.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,477.84 : 5,215.39 = 1,397.30 : x
  2. Step 2: Convert to fraction form
    3,477.84/5,215.39 = 1,397.30/x
  3. Step 3: Cross multiply
    3,477.84x = 5,215.39 × 1,397.30
  4. Step 4: Simplify right side
    3,477.84x = 7,287,464.21
  5. Step 5: Solve for x
    x = 7,287,464.21/3,477.84
  6. Step 6: Final answer
    x = 2,095.40

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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.