Home / 1,510.40-2,252.80-1,372.16

Finding the Fourth Proportional to 1,510.40, 2,252.80 and 1,372.16

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Solution

The fourth proportional to 1,510.40, 2,252.80 and 1,372.16 is: 2,046.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,510.40 : 2,252.80 = 1,372.16 : x
  2. Step 2: Convert to fraction form
    1,510.40/2,252.80 = 1,372.16/x
  3. Step 3: Cross multiply
    1,510.40x = 2,252.80 × 1,372.16
  4. Step 4: Simplify right side
    1,510.40x = 3,091,202.05
  5. Step 5: Solve for x
    x = 3,091,202.05/1,510.40
  6. Step 6: Final answer
    x = 2,046.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.