Home / 2,149.64-2,966.02-1,403.72

Finding the Fourth Proportional to 2,149.64, 2,966.02 and 1,403.72

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Solution

The fourth proportional to 2,149.64, 2,966.02 and 1,403.72 is: 1,936.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,149.64 : 2,966.02 = 1,403.72 : x
  2. Step 2: Convert to fraction form
    2,149.64/2,966.02 = 1,403.72/x
  3. Step 3: Cross multiply
    2,149.64x = 2,966.02 × 1,403.72
  4. Step 4: Simplify right side
    2,149.64x = 4,163,461.59
  5. Step 5: Solve for x
    x = 4,163,461.59/2,149.64
  6. Step 6: Final answer
    x = 1,936.82

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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.