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Finding the Fourth Proportional to 2,802.10, 4,203.15 and 2,499.70

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Solution

The fourth proportional to 2,802.10, 4,203.15 and 2,499.70 is: 3,749.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,802.10 : 4,203.15 = 2,499.70 : x
  2. Step 2: Convert to fraction form
    2,802.10/4,203.15 = 2,499.70/x
  3. Step 3: Cross multiply
    2,802.10x = 4,203.15 × 2,499.70
  4. Step 4: Simplify right side
    2,802.10x = 10,506,614.06
  5. Step 5: Solve for x
    x = 10,506,614.06/2,802.10
  6. Step 6: Final answer
    x = 3,749.55

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.