Home / 2,316.19-3,474.64-777.55

Finding the Fourth Proportional to 2,316.19, 3,474.64 and 777.55

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Solution

The fourth proportional to 2,316.19, 3,474.64 and 777.55 is: 1,166.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,316.19 : 3,474.64 = 777.55 : x
  2. Step 2: Convert to fraction form
    2,316.19/3,474.64 = 777.55/x
  3. Step 3: Cross multiply
    2,316.19x = 3,474.64 × 777.55
  4. Step 4: Simplify right side
    2,316.19x = 2,701,698.62
  5. Step 5: Solve for x
    x = 2,701,698.62/2,316.19
  6. Step 6: Final answer
    x = 1,166.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.