Home / 1,905.08-2,625.87-1,275.39

Finding the Fourth Proportional to 1,905.08, 2,625.87 and 1,275.39

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Solution

The fourth proportional to 1,905.08, 2,625.87 and 1,275.39 is: 1,757.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,905.08 : 2,625.87 = 1,275.39 : x
  2. Step 2: Convert to fraction form
    1,905.08/2,625.87 = 1,275.39/x
  3. Step 3: Cross multiply
    1,905.08x = 2,625.87 × 1,275.39
  4. Step 4: Simplify right side
    1,905.08x = 3,348,988.83
  5. Step 5: Solve for x
    x = 3,348,988.83/1,905.08
  6. Step 6: Final answer
    x = 1,757.93

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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.