Home / 5,646.18-7,792.65-3,408.21

Finding the Fourth Proportional to 5,646.18, 7,792.65 and 3,408.21

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Solution

The fourth proportional to 5,646.18, 7,792.65 and 3,408.21 is: 4,703.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,646.18 : 7,792.65 = 3,408.21 : x
  2. Step 2: Convert to fraction form
    5,646.18/7,792.65 = 3,408.21/x
  3. Step 3: Cross multiply
    5,646.18x = 7,792.65 × 3,408.21
  4. Step 4: Simplify right side
    5,646.18x = 26,558,987.66
  5. Step 5: Solve for x
    x = 26,558,987.66/5,646.18
  6. Step 6: Final answer
    x = 4,703.89

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Half scale
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Double scale
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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.