Home / 6,870.30-10,305.45-4,407.90

Finding the Fourth Proportional to 6,870.30, 10,305.45 and 4,407.90

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Solution

The fourth proportional to 6,870.30, 10,305.45 and 4,407.90 is: 6,611.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,870.30 : 10,305.45 = 4,407.90 : x
  2. Step 2: Convert to fraction form
    6,870.30/10,305.45 = 4,407.90/x
  3. Step 3: Cross multiply
    6,870.30x = 10,305.45 × 4,407.90
  4. Step 4: Simplify right side
    6,870.30x = 45,425,393.06
  5. Step 5: Solve for x
    x = 45,425,393.06/6,870.30
  6. Step 6: Final answer
    x = 6,611.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.