Home / 1,792.79-2,685.26-1,271.20

Finding the Fourth Proportional to 1,792.79, 2,685.26 and 1,271.20

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Solution

The fourth proportional to 1,792.79, 2,685.26 and 1,271.20 is: 1,904.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,792.79 : 2,685.26 = 1,271.20 : x
  2. Step 2: Convert to fraction form
    1,792.79/2,685.26 = 1,271.20/x
  3. Step 3: Cross multiply
    1,792.79x = 2,685.26 × 1,271.20
  4. Step 4: Simplify right side
    1,792.79x = 3,413,502.51
  5. Step 5: Solve for x
    x = 3,413,502.51/1,792.79
  6. Step 6: Final answer
    x = 1,904.02

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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.