Home / 2,864.51-4,289.47-1,887.65

Finding the Fourth Proportional to 2,864.51, 4,289.47 and 1,887.65

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Solution

The fourth proportional to 2,864.51, 4,289.47 and 1,887.65 is: 2,826.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,864.51 : 4,289.47 = 1,887.65 : x
  2. Step 2: Convert to fraction form
    2,864.51/4,289.47 = 1,887.65/x
  3. Step 3: Cross multiply
    2,864.51x = 4,289.47 × 1,887.65
  4. Step 4: Simplify right side
    2,864.51x = 8,096,991.88
  5. Step 5: Solve for x
    x = 8,096,991.88/2,864.51
  6. Step 6: Final answer
    x = 2,826.66

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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.