Home / 2,155.11-2,977.74-1,597.42

Finding the Fourth Proportional to 2,155.11, 2,977.74 and 1,597.42

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Solution

The fourth proportional to 2,155.11, 2,977.74 and 1,597.42 is: 2,207.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,155.11 : 2,977.74 = 1,597.42 : x
  2. Step 2: Convert to fraction form
    2,155.11/2,977.74 = 1,597.42/x
  3. Step 3: Cross multiply
    2,155.11x = 2,977.74 × 1,597.42
  4. Step 4: Simplify right side
    2,155.11x = 4,756,700.66
  5. Step 5: Solve for x
    x = 4,756,700.66/2,155.11
  6. Step 6: Final answer
    x = 2,207.18

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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.