Home / 3,510.09-5,261.88-1,320.27

Finding the Fourth Proportional to 3,510.09, 5,261.88 and 1,320.27

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Solution

The fourth proportional to 3,510.09, 5,261.88 and 1,320.27 is: 1,979.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,510.09 : 5,261.88 = 1,320.27 : x
  2. Step 2: Convert to fraction form
    3,510.09/5,261.88 = 1,320.27/x
  3. Step 3: Cross multiply
    3,510.09x = 5,261.88 × 1,320.27
  4. Step 4: Simplify right side
    3,510.09x = 6,947,102.31
  5. Step 5: Solve for x
    x = 6,947,102.31/3,510.09
  6. Step 6: Final answer
    x = 1,979.18

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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.