Home / 2,887.39-4,330.42-1,406.58

Finding the Fourth Proportional to 2,887.39, 4,330.42 and 1,406.58

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Solution

The fourth proportional to 2,887.39, 4,330.42 and 1,406.58 is: 2,109.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,887.39 : 4,330.42 = 1,406.58 : x
  2. Step 2: Convert to fraction form
    2,887.39/4,330.42 = 1,406.58/x
  3. Step 3: Cross multiply
    2,887.39x = 4,330.42 × 1,406.58
  4. Step 4: Simplify right side
    2,887.39x = 6,091,082.16
  5. Step 5: Solve for x
    x = 6,091,082.16/2,887.39
  6. Step 6: Final answer
    x = 2,109.55

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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.