Home / 2,487.08-3,434.58-1,865

Finding the Fourth Proportional to 2,487.08, 3,434.58 and 1,865

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Solution

The fourth proportional to 2,487.08, 3,434.58 and 1,865 is: 2,575.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,487.08 : 3,434.58 = 1,865 : x
  2. Step 2: Convert to fraction form
    2,487.08/3,434.58 = 1,865/x
  3. Step 3: Cross multiply
    2,487.08x = 3,434.58 × 1,865
  4. Step 4: Simplify right side
    2,487.08x = 6,405,491.70
  5. Step 5: Solve for x
    x = 6,405,491.70/2,487.08
  6. Step 6: Final answer
    x = 2,575.51

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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.