Home / 3,248.02-4,483.68-1,921.78

Finding the Fourth Proportional to 3,248.02, 4,483.68 and 1,921.78

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Solution

The fourth proportional to 3,248.02, 4,483.68 and 1,921.78 is: 2,652.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,248.02 : 4,483.68 = 1,921.78 : x
  2. Step 2: Convert to fraction form
    3,248.02/4,483.68 = 1,921.78/x
  3. Step 3: Cross multiply
    3,248.02x = 4,483.68 × 1,921.78
  4. Step 4: Simplify right side
    3,248.02x = 8,616,646.55
  5. Step 5: Solve for x
    x = 8,616,646.55/3,248.02
  6. Step 6: Final answer
    x = 2,652.89

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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.