Home / 5,611.31-8,417.09-2,686.40

Finding the Fourth Proportional to 5,611.31, 8,417.09 and 2,686.40

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Solution

The fourth proportional to 5,611.31, 8,417.09 and 2,686.40 is: 4,029.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,611.31 : 8,417.09 = 2,686.40 : x
  2. Step 2: Convert to fraction form
    5,611.31/8,417.09 = 2,686.40/x
  3. Step 3: Cross multiply
    5,611.31x = 8,417.09 × 2,686.40
  4. Step 4: Simplify right side
    5,611.31x = 22,611,657.14
  5. Step 5: Solve for x
    x = 22,611,657.14/5,611.31
  6. Step 6: Final answer
    x = 4,029.66

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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.