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Finding the Fourth Proportional to 2,887.65, 4,324.10 and 1,587.69

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Solution

The fourth proportional to 2,887.65, 4,324.10 and 1,587.69 is: 2,377.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,887.65 : 4,324.10 = 1,587.69 : x
  2. Step 2: Convert to fraction form
    2,887.65/4,324.10 = 1,587.69/x
  3. Step 3: Cross multiply
    2,887.65x = 4,324.10 × 1,587.69
  4. Step 4: Simplify right side
    2,887.65x = 6,865,322.39
  5. Step 5: Solve for x
    x = 6,865,322.39/2,887.65
  6. Step 6: Final answer
    x = 2,377.48

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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.