Home / 2,870.25-4,302.81-1,635.89

Finding the Fourth Proportional to 2,870.25, 4,302.81 and 1,635.89

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Solution

The fourth proportional to 2,870.25, 4,302.81 and 1,635.89 is: 2,452.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,870.25 : 4,302.81 = 1,635.89 : x
  2. Step 2: Convert to fraction form
    2,870.25/4,302.81 = 1,635.89/x
  3. Step 3: Cross multiply
    2,870.25x = 4,302.81 × 1,635.89
  4. Step 4: Simplify right side
    2,870.25x = 7,038,902.34
  5. Step 5: Solve for x
    x = 7,038,902.34/2,870.25
  6. Step 6: Final answer
    x = 2,452.37

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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.