Home / 1,601.36-2,210.16-1,272.30

Finding the Fourth Proportional to 1,601.36, 2,210.16 and 1,272.30

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Solution

The fourth proportional to 1,601.36, 2,210.16 and 1,272.30 is: 1,756.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,601.36 : 2,210.16 = 1,272.30 : x
  2. Step 2: Convert to fraction form
    1,601.36/2,210.16 = 1,272.30/x
  3. Step 3: Cross multiply
    1,601.36x = 2,210.16 × 1,272.30
  4. Step 4: Simplify right side
    1,601.36x = 2,811,986.57
  5. Step 5: Solve for x
    x = 2,811,986.57/1,601.36
  6. Step 6: Final answer
    x = 1,756.00

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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.