Home / 1,556.08-2,148.05-966.80

Finding the Fourth Proportional to 1,556.08, 2,148.05 and 966.80

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Solution

The fourth proportional to 1,556.08, 2,148.05 and 966.80 is: 1,334.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,556.08 : 2,148.05 = 966.80 : x
  2. Step 2: Convert to fraction form
    1,556.08/2,148.05 = 966.80/x
  3. Step 3: Cross multiply
    1,556.08x = 2,148.05 × 966.80
  4. Step 4: Simplify right side
    1,556.08x = 2,076,742.53
  5. Step 5: Solve for x
    x = 2,076,742.53/1,556.08
  6. Step 6: Final answer
    x = 1,334.60

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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.