Home / 6,856.21-9,461.64-3,712.40

Finding the Fourth Proportional to 6,856.21, 9,461.64 and 3,712.40

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Solution

The fourth proportional to 6,856.21, 9,461.64 and 3,712.40 is: 5,123.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,856.21 : 9,461.64 = 3,712.40 : x
  2. Step 2: Convert to fraction form
    6,856.21/9,461.64 = 3,712.40/x
  3. Step 3: Cross multiply
    6,856.21x = 9,461.64 × 3,712.40
  4. Step 4: Simplify right side
    6,856.21x = 35,125,394.43
  5. Step 5: Solve for x
    x = 35,125,394.43/6,856.21
  6. Step 6: Final answer
    x = 5,123.15

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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.