Home / 3,776.40-5,210.37-2,378.34

Finding the Fourth Proportional to 3,776.40, 5,210.37 and 2,378.34

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Solution

The fourth proportional to 3,776.40, 5,210.37 and 2,378.34 is: 3,281.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,776.40 : 5,210.37 = 2,378.34 : x
  2. Step 2: Convert to fraction form
    3,776.40/5,210.37 = 2,378.34/x
  3. Step 3: Cross multiply
    3,776.40x = 5,210.37 × 2,378.34
  4. Step 4: Simplify right side
    3,776.40x = 12,392,031.39
  5. Step 5: Solve for x
    x = 12,392,031.39/3,776.40
  6. Step 6: Final answer
    x = 3,281.44

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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.