Home / 2,586.08-3,877.76-1,124.56

Finding the Fourth Proportional to 2,586.08, 3,877.76 and 1,124.56

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Solution

The fourth proportional to 2,586.08, 3,877.76 and 1,124.56 is: 1,686.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,586.08 : 3,877.76 = 1,124.56 : x
  2. Step 2: Convert to fraction form
    2,586.08/3,877.76 = 1,124.56/x
  3. Step 3: Cross multiply
    2,586.08x = 3,877.76 × 1,124.56
  4. Step 4: Simplify right side
    2,586.08x = 4,360,773.79
  5. Step 5: Solve for x
    x = 4,360,773.79/2,586.08
  6. Step 6: Final answer
    x = 1,686.25

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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.