Home / 1,556.07-2,144.42-1,113.20

Finding the Fourth Proportional to 1,556.07, 2,144.42 and 1,113.20

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Solution

The fourth proportional to 1,556.07, 2,144.42 and 1,113.20 is: 1,534.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,556.07 : 2,144.42 = 1,113.20 : x
  2. Step 2: Convert to fraction form
    1,556.07/2,144.42 = 1,113.20/x
  3. Step 3: Cross multiply
    1,556.07x = 2,144.42 × 1,113.20
  4. Step 4: Simplify right side
    1,556.07x = 2,387,176.49
  5. Step 5: Solve for x
    x = 2,387,176.49/1,556.07
  6. Step 6: Final answer
    x = 1,534.11

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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.