Home / 6,856.13-9,461.88-3,870.87

Finding the Fourth Proportional to 6,856.13, 9,461.88 and 3,870.87

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Solution

The fourth proportional to 6,856.13, 9,461.88 and 3,870.87 is: 5,342.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,856.13 : 9,461.88 = 3,870.87 : x
  2. Step 2: Convert to fraction form
    6,856.13/9,461.88 = 3,870.87/x
  3. Step 3: Cross multiply
    6,856.13x = 9,461.88 × 3,870.87
  4. Step 4: Simplify right side
    6,856.13x = 36,625,707.44
  5. Step 5: Solve for x
    x = 36,625,707.44/6,856.13
  6. Step 6: Final answer
    x = 5,342.04

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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.