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Finding the Fourth Proportional to 1,711.05, 2,361.25 and 925.10

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Solution

The fourth proportional to 1,711.05, 2,361.25 and 925.10 is: 1,276.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,711.05 : 2,361.25 = 925.10 : x
  2. Step 2: Convert to fraction form
    1,711.05/2,361.25 = 925.10/x
  3. Step 3: Cross multiply
    1,711.05x = 2,361.25 × 925.10
  4. Step 4: Simplify right side
    1,711.05x = 2,184,386.47
  5. Step 5: Solve for x
    x = 2,184,386.47/1,711.05
  6. Step 6: Final answer
    x = 1,276.63

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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.