Home / 1,545.21-2,306.58-1,431.00

Finding the Fourth Proportional to 1,545.21, 2,306.58 and 1,431.00

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Solution

The fourth proportional to 1,545.21, 2,306.58 and 1,431.00 is: 2,136.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,545.21 : 2,306.58 = 1,431.00 : x
  2. Step 2: Convert to fraction form
    1,545.21/2,306.58 = 1,431.00/x
  3. Step 3: Cross multiply
    1,545.21x = 2,306.58 × 1,431.00
  4. Step 4: Simplify right side
    1,545.21x = 3,300,717.62
  5. Step 5: Solve for x
    x = 3,300,717.62/1,545.21
  6. Step 6: Final answer
    x = 2,136.09

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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.