Home / 2,887.65-4,330.26-1,243.35

Finding the Fourth Proportional to 2,887.65, 4,330.26 and 1,243.35

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Solution

The fourth proportional to 2,887.65, 4,330.26 and 1,243.35 is: 1,864.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,887.65 : 4,330.26 = 1,243.35 : x
  2. Step 2: Convert to fraction form
    2,887.65/4,330.26 = 1,243.35/x
  3. Step 3: Cross multiply
    2,887.65x = 4,330.26 × 1,243.35
  4. Step 4: Simplify right side
    2,887.65x = 5,384,028.77
  5. Step 5: Solve for x
    x = 5,384,028.77/2,887.65
  6. Step 6: Final answer
    x = 1,864.50

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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.