Home / 1,556.88-2,145.54-1,114.02

Finding the Fourth Proportional to 1,556.88, 2,145.54 and 1,114.02

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Solution

The fourth proportional to 1,556.88, 2,145.54 and 1,114.02 is: 1,535.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,556.88 : 2,145.54 = 1,114.02 : x
  2. Step 2: Convert to fraction form
    1,556.88/2,145.54 = 1,114.02/x
  3. Step 3: Cross multiply
    1,556.88x = 2,145.54 × 1,114.02
  4. Step 4: Simplify right side
    1,556.88x = 2,390,174.47
  5. Step 5: Solve for x
    x = 2,390,174.47/1,556.88
  6. Step 6: Final answer
    x = 1,535.23

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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.