Home / 3,648.48-5,031.93-2,319.90

Finding the Fourth Proportional to 3,648.48, 5,031.93 and 2,319.90

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Solution

The fourth proportional to 3,648.48, 5,031.93 and 2,319.90 is: 3,199.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,648.48 : 5,031.93 = 2,319.90 : x
  2. Step 2: Convert to fraction form
    3,648.48/5,031.93 = 2,319.90/x
  3. Step 3: Cross multiply
    3,648.48x = 5,031.93 × 2,319.90
  4. Step 4: Simplify right side
    3,648.48x = 11,673,574.41
  5. Step 5: Solve for x
    x = 11,673,574.41/3,648.48
  6. Step 6: Final answer
    x = 3,199.57

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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.