Home / 2,477.34-3,420.36-1,909.17

Finding the Fourth Proportional to 2,477.34, 3,420.36 and 1,909.17

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Solution

The fourth proportional to 2,477.34, 3,420.36 and 1,909.17 is: 2,635.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,477.34 : 3,420.36 = 1,909.17 : x
  2. Step 2: Convert to fraction form
    2,477.34/3,420.36 = 1,909.17/x
  3. Step 3: Cross multiply
    2,477.34x = 3,420.36 × 1,909.17
  4. Step 4: Simplify right side
    2,477.34x = 6,530,048.70
  5. Step 5: Solve for x
    x = 6,530,048.70/2,477.34
  6. Step 6: Final answer
    x = 2,635.91

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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.