Home / 6,621.09-9,931.73-1,690.77

Finding the Fourth Proportional to 6,621.09, 9,931.73 and 1,690.77

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Solution

The fourth proportional to 6,621.09, 9,931.73 and 1,690.77 is: 2,536.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,621.09 : 9,931.73 = 1,690.77 : x
  2. Step 2: Convert to fraction form
    6,621.09/9,931.73 = 1,690.77/x
  3. Step 3: Cross multiply
    6,621.09x = 9,931.73 × 1,690.77
  4. Step 4: Simplify right side
    6,621.09x = 16,792,262.68
  5. Step 5: Solve for x
    x = 16,792,262.68/6,621.09
  6. Step 6: Final answer
    x = 2,536.18

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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.