Home / 1,924.39-2,656.47-1,225.81

Finding the Fourth Proportional to 1,924.39, 2,656.47 and 1,225.81

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Solution

The fourth proportional to 1,924.39, 2,656.47 and 1,225.81 is: 1,692.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,924.39 : 2,656.47 = 1,225.81 : x
  2. Step 2: Convert to fraction form
    1,924.39/2,656.47 = 1,225.81/x
  3. Step 3: Cross multiply
    1,924.39x = 2,656.47 × 1,225.81
  4. Step 4: Simplify right side
    1,924.39x = 3,256,327.49
  5. Step 5: Solve for x
    x = 3,256,327.49/1,924.39
  6. Step 6: Final answer
    x = 1,692.13

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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.