Home / 3,518.39-5,277.64-921.33

Finding the Fourth Proportional to 3,518.39, 5,277.64 and 921.33

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Solution

The fourth proportional to 3,518.39, 5,277.64 and 921.33 is: 1,382.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,518.39 : 5,277.64 = 921.33 : x
  2. Step 2: Convert to fraction form
    3,518.39/5,277.64 = 921.33/x
  3. Step 3: Cross multiply
    3,518.39x = 5,277.64 × 921.33
  4. Step 4: Simplify right side
    3,518.39x = 4,862,445.76
  5. Step 5: Solve for x
    x = 4,862,445.76/3,518.39
  6. Step 6: Final answer
    x = 1,382.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.