Home / 5,636.48-7,778.28-3,118.28

Finding the Fourth Proportional to 5,636.48, 7,778.28 and 3,118.28

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Solution

The fourth proportional to 5,636.48, 7,778.28 and 3,118.28 is: 4,303.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,636.48 : 7,778.28 = 3,118.28 : x
  2. Step 2: Convert to fraction form
    5,636.48/7,778.28 = 3,118.28/x
  3. Step 3: Cross multiply
    5,636.48x = 7,778.28 × 3,118.28
  4. Step 4: Simplify right side
    5,636.48x = 24,254,854.96
  5. Step 5: Solve for x
    x = 24,254,854.96/5,636.48
  6. Step 6: Final answer
    x = 4,303.19

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1.5x scale

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.