Home / 1,752.21-2,418.21-1,309.34

Finding the Fourth Proportional to 1,752.21, 2,418.21 and 1,309.34

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Solution

The fourth proportional to 1,752.21, 2,418.21 and 1,309.34 is: 1,807.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,752.21 : 2,418.21 = 1,309.34 : x
  2. Step 2: Convert to fraction form
    1,752.21/2,418.21 = 1,309.34/x
  3. Step 3: Cross multiply
    1,752.21x = 2,418.21 × 1,309.34
  4. Step 4: Simplify right side
    1,752.21x = 3,166,257.95
  5. Step 5: Solve for x
    x = 3,166,257.95/1,752.21
  6. Step 6: Final answer
    x = 1,807.01

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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.