Home / 1,725.06-2,374.20-1,331.40

Finding the Fourth Proportional to 1,725.06, 2,374.20 and 1,331.40

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Solution

The fourth proportional to 1,725.06, 2,374.20 and 1,331.40 is: 1,832.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,725.06 : 2,374.20 = 1,331.40 : x
  2. Step 2: Convert to fraction form
    1,725.06/2,374.20 = 1,331.40/x
  3. Step 3: Cross multiply
    1,725.06x = 2,374.20 × 1,331.40
  4. Step 4: Simplify right side
    1,725.06x = 3,161,009.88
  5. Step 5: Solve for x
    x = 3,161,009.88/1,725.06
  6. Step 6: Final answer
    x = 1,832.41

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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.