Home / 5,710.40-7,881.60-3,615.04

Finding the Fourth Proportional to 5,710.40, 7,881.60 and 3,615.04

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Solution

The fourth proportional to 5,710.40, 7,881.60 and 3,615.04 is: 4,989.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,710.40 : 7,881.60 = 3,615.04 : x
  2. Step 2: Convert to fraction form
    5,710.40/7,881.60 = 3,615.04/x
  3. Step 3: Cross multiply
    5,710.40x = 7,881.60 × 3,615.04
  4. Step 4: Simplify right side
    5,710.40x = 28,492,299.26
  5. Step 5: Solve for x
    x = 28,492,299.26/5,710.40
  6. Step 6: Final answer
    x = 4,989.55

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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.