Home / 1,639.02-2,455.28-1,364.22

Finding the Fourth Proportional to 1,639.02, 2,455.28 and 1,364.22

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Solution

The fourth proportional to 1,639.02, 2,455.28 and 1,364.22 is: 2,043.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,639.02 : 2,455.28 = 1,364.22 : x
  2. Step 2: Convert to fraction form
    1,639.02/2,455.28 = 1,364.22/x
  3. Step 3: Cross multiply
    1,639.02x = 2,455.28 × 1,364.22
  4. Step 4: Simplify right side
    1,639.02x = 3,349,542.08
  5. Step 5: Solve for x
    x = 3,349,542.08/1,639.02
  6. Step 6: Final answer
    x = 2,043.62

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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.