Home / 2,037.55-2,811.84-1,187.02

Finding the Fourth Proportional to 2,037.55, 2,811.84 and 1,187.02

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Solution

The fourth proportional to 2,037.55, 2,811.84 and 1,187.02 is: 1,638.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,037.55 : 2,811.84 = 1,187.02 : x
  2. Step 2: Convert to fraction form
    2,037.55/2,811.84 = 1,187.02/x
  3. Step 3: Cross multiply
    2,037.55x = 2,811.84 × 1,187.02
  4. Step 4: Simplify right side
    2,037.55x = 3,337,710.32
  5. Step 5: Solve for x
    x = 3,337,710.32/2,037.55
  6. Step 6: Final answer
    x = 1,638.10

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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.