Home / 6,622.29-9,139.64-4,271.27

Finding the Fourth Proportional to 6,622.29, 9,139.64 and 4,271.27

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Solution

The fourth proportional to 6,622.29, 9,139.64 and 4,271.27 is: 5,894.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,622.29 : 9,139.64 = 4,271.27 : x
  2. Step 2: Convert to fraction form
    6,622.29/9,139.64 = 4,271.27/x
  3. Step 3: Cross multiply
    6,622.29x = 9,139.64 × 4,271.27
  4. Step 4: Simplify right side
    6,622.29x = 39,037,803.09
  5. Step 5: Solve for x
    x = 39,037,803.09/6,622.29
  6. Step 6: Final answer
    x = 5,894.91

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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.