Home / 1,573.05-2,168.64-1,255.10

Finding the Fourth Proportional to 1,573.05, 2,168.64 and 1,255.10

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Solution

The fourth proportional to 1,573.05, 2,168.64 and 1,255.10 is: 1,730.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,573.05 : 2,168.64 = 1,255.10 : x
  2. Step 2: Convert to fraction form
    1,573.05/2,168.64 = 1,255.10/x
  3. Step 3: Cross multiply
    1,573.05x = 2,168.64 × 1,255.10
  4. Step 4: Simplify right side
    1,573.05x = 2,721,860.06
  5. Step 5: Solve for x
    x = 2,721,860.06/1,573.05
  6. Step 6: Final answer
    x = 1,730.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.