Home / 1,556.80-2,145.63-1,182.94

Finding the Fourth Proportional to 1,556.80, 2,145.63 and 1,182.94

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Solution

The fourth proportional to 1,556.80, 2,145.63 and 1,182.94 is: 1,630.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,556.80 : 2,145.63 = 1,182.94 : x
  2. Step 2: Convert to fraction form
    1,556.80/2,145.63 = 1,182.94/x
  3. Step 3: Cross multiply
    1,556.80x = 2,145.63 × 1,182.94
  4. Step 4: Simplify right side
    1,556.80x = 2,538,151.55
  5. Step 5: Solve for x
    x = 2,538,151.55/1,556.80
  6. Step 6: Final answer
    x = 1,630.36

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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.