Home / 1,909.05-2,634.47-1,752.31

Finding the Fourth Proportional to 1,909.05, 2,634.47 and 1,752.31

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Solution

The fourth proportional to 1,909.05, 2,634.47 and 1,752.31 is: 2,418.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,909.05 : 2,634.47 = 1,752.31 : x
  2. Step 2: Convert to fraction form
    1,909.05/2,634.47 = 1,752.31/x
  3. Step 3: Cross multiply
    1,909.05x = 2,634.47 × 1,752.31
  4. Step 4: Simplify right side
    1,909.05x = 4,616,409.23
  5. Step 5: Solve for x
    x = 4,616,409.23/1,909.05
  6. Step 6: Final answer
    x = 2,418.18

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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.