Home / 3,870.34-5,341.08-2,101.94

Finding the Fourth Proportional to 3,870.34, 5,341.08 and 2,101.94

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Solution

The fourth proportional to 3,870.34, 5,341.08 and 2,101.94 is: 2,900.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,870.34 : 5,341.08 = 2,101.94 : x
  2. Step 2: Convert to fraction form
    3,870.34/5,341.08 = 2,101.94/x
  3. Step 3: Cross multiply
    3,870.34x = 5,341.08 × 2,101.94
  4. Step 4: Simplify right side
    3,870.34x = 11,226,629.70
  5. Step 5: Solve for x
    x = 11,226,629.70/3,870.34
  6. Step 6: Final answer
    x = 2,900.68

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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.