Home / 7,324.51-10,986.65-1,777.90

Finding the Fourth Proportional to 7,324.51, 10,986.65 and 1,777.90

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Solution

The fourth proportional to 7,324.51, 10,986.65 and 1,777.90 is: 2,666.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,324.51 : 10,986.65 = 1,777.90 : x
  2. Step 2: Convert to fraction form
    7,324.51/10,986.65 = 1,777.90/x
  3. Step 3: Cross multiply
    7,324.51x = 10,986.65 × 1,777.90
  4. Step 4: Simplify right side
    7,324.51x = 19,533,128.68
  5. Step 5: Solve for x
    x = 19,533,128.68/7,324.51
  6. Step 6: Final answer
    x = 2,666.82

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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.