Home / 4,188.53-5,780.89-2,421.16

Finding the Fourth Proportional to 4,188.53, 5,780.89 and 2,421.16

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Solution

The fourth proportional to 4,188.53, 5,780.89 and 2,421.16 is: 3,341.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,188.53 : 5,780.89 = 2,421.16 : x
  2. Step 2: Convert to fraction form
    4,188.53/5,780.89 = 2,421.16/x
  3. Step 3: Cross multiply
    4,188.53x = 5,780.89 × 2,421.16
  4. Step 4: Simplify right side
    4,188.53x = 13,996,467.11
  5. Step 5: Solve for x
    x = 13,996,467.11/4,188.53
  6. Step 6: Final answer
    x = 3,341.62

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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.