Home / 7,745.16-10,688.40-4,387.92

Finding the Fourth Proportional to 7,745.16, 10,688.40 and 4,387.92

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Solution

The fourth proportional to 7,745.16, 10,688.40 and 4,387.92 is: 6,055.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,745.16 : 10,688.40 = 4,387.92 : x
  2. Step 2: Convert to fraction form
    7,745.16/10,688.40 = 4,387.92/x
  3. Step 3: Cross multiply
    7,745.16x = 10,688.40 × 4,387.92
  4. Step 4: Simplify right side
    7,745.16x = 46,899,844.13
  5. Step 5: Solve for x
    x = 46,899,844.13/7,745.16
  6. Step 6: Final answer
    x = 6,055.37

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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.