Home / 1,907.40-2,632.24-1,161.39

Finding the Fourth Proportional to 1,907.40, 2,632.24 and 1,161.39

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Solution

The fourth proportional to 1,907.40, 2,632.24 and 1,161.39 is: 1,602.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,907.40 : 2,632.24 = 1,161.39 : x
  2. Step 2: Convert to fraction form
    1,907.40/2,632.24 = 1,161.39/x
  3. Step 3: Cross multiply
    1,907.40x = 2,632.24 × 1,161.39
  4. Step 4: Simplify right side
    1,907.40x = 3,057,057.21
  5. Step 5: Solve for x
    x = 3,057,057.21/1,907.40
  6. Step 6: Final answer
    x = 1,602.74

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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.