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Finding the Fourth Proportional to 2,535.10, 3,802.62 and 891.64

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Solution

The fourth proportional to 2,535.10, 3,802.62 and 891.64 is: 1,337.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,535.10 : 3,802.62 = 891.64 : x
  2. Step 2: Convert to fraction form
    2,535.10/3,802.62 = 891.64/x
  3. Step 3: Cross multiply
    2,535.10x = 3,802.62 × 891.64
  4. Step 4: Simplify right side
    2,535.10x = 3,390,568.10
  5. Step 5: Solve for x
    x = 3,390,568.10/2,535.10
  6. Step 6: Final answer
    x = 1,337.45

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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.