Home / 2,585.07-3,877.65-1,438.11

Finding the Fourth Proportional to 2,585.07, 3,877.65 and 1,438.11

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Solution

The fourth proportional to 2,585.07, 3,877.65 and 1,438.11 is: 2,157.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,585.07 : 3,877.65 = 1,438.11 : x
  2. Step 2: Convert to fraction form
    2,585.07/3,877.65 = 1,438.11/x
  3. Step 3: Cross multiply
    2,585.07x = 3,877.65 × 1,438.11
  4. Step 4: Simplify right side
    2,585.07x = 5,576,487.24
  5. Step 5: Solve for x
    x = 5,576,487.24/2,585.07
  6. Step 6: Final answer
    x = 2,157.19

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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.