Home / 6,531.40-9,790.70-5,840.20

Finding the Fourth Proportional to 6,531.40, 9,790.70 and 5,840.20

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Solution

The fourth proportional to 6,531.40, 9,790.70 and 5,840.20 is: 8,754.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,531.40 : 9,790.70 = 5,840.20 : x
  2. Step 2: Convert to fraction form
    6,531.40/9,790.70 = 5,840.20/x
  3. Step 3: Cross multiply
    6,531.40x = 9,790.70 × 5,840.20
  4. Step 4: Simplify right side
    6,531.40x = 57,179,646.14
  5. Step 5: Solve for x
    x = 57,179,646.14/6,531.40
  6. Step 6: Final answer
    x = 8,754.58

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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.