Home / 2,573.79-3,858.40-1,256.81

Finding the Fourth Proportional to 2,573.79, 3,858.40 and 1,256.81

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Solution

The fourth proportional to 2,573.79, 3,858.40 and 1,256.81 is: 1,884.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,573.79 : 3,858.40 = 1,256.81 : x
  2. Step 2: Convert to fraction form
    2,573.79/3,858.40 = 1,256.81/x
  3. Step 3: Cross multiply
    2,573.79x = 3,858.40 × 1,256.81
  4. Step 4: Simplify right side
    2,573.79x = 4,849,269.42
  5. Step 5: Solve for x
    x = 4,849,269.42/2,573.79
  6. Step 6: Final answer
    x = 1,884.10

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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.