Home / 2,572.95-3,859.60-1,274.07

Finding the Fourth Proportional to 2,572.95, 3,859.60 and 1,274.07

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Solution

The fourth proportional to 2,572.95, 3,859.60 and 1,274.07 is: 1,911.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,572.95 : 3,859.60 = 1,274.07 : x
  2. Step 2: Convert to fraction form
    2,572.95/3,859.60 = 1,274.07/x
  3. Step 3: Cross multiply
    2,572.95x = 3,859.60 × 1,274.07
  4. Step 4: Simplify right side
    2,572.95x = 4,917,400.57
  5. Step 5: Solve for x
    x = 4,917,400.57/2,572.95
  6. Step 6: Final answer
    x = 1,911.19

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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.