Home / 2,487.65-3,432.87-1,368.59

Finding the Fourth Proportional to 2,487.65, 3,432.87 and 1,368.59

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Solution

The fourth proportional to 2,487.65, 3,432.87 and 1,368.59 is: 1,888.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,487.65 : 3,432.87 = 1,368.59 : x
  2. Step 2: Convert to fraction form
    2,487.65/3,432.87 = 1,368.59/x
  3. Step 3: Cross multiply
    2,487.65x = 3,432.87 × 1,368.59
  4. Step 4: Simplify right side
    2,487.65x = 4,698,174.39
  5. Step 5: Solve for x
    x = 4,698,174.39/2,487.65
  6. Step 6: Final answer
    x = 1,888.60

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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.