Home / 1,572.05-2,167.26-1,254.10

Finding the Fourth Proportional to 1,572.05, 2,167.26 and 1,254.10

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Solution

The fourth proportional to 1,572.05, 2,167.26 and 1,254.10 is: 1,728.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,572.05 : 2,167.26 = 1,254.10 : x
  2. Step 2: Convert to fraction form
    1,572.05/2,167.26 = 1,254.10/x
  3. Step 3: Cross multiply
    1,572.05x = 2,167.26 × 1,254.10
  4. Step 4: Simplify right side
    1,572.05x = 2,717,968.96
  5. Step 5: Solve for x
    x = 2,717,968.96/1,572.05
  6. Step 6: Final answer
    x = 1,728.93

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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.