Home / 1,542.55-2,128.66-1,417.04

Finding the Fourth Proportional to 1,542.55, 2,128.66 and 1,417.04

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Solution

The fourth proportional to 1,542.55, 2,128.66 and 1,417.04 is: 1,955.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,542.55 : 2,128.66 = 1,417.04 : x
  2. Step 2: Convert to fraction form
    1,542.55/2,128.66 = 1,417.04/x
  3. Step 3: Cross multiply
    1,542.55x = 2,128.66 × 1,417.04
  4. Step 4: Simplify right side
    1,542.55x = 3,016,396.37
  5. Step 5: Solve for x
    x = 3,016,396.37/1,542.55
  6. Step 6: Final answer
    x = 1,955.46

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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.