Home / 7,858.13-10,844.28-4,321.40

Finding the Fourth Proportional to 7,858.13, 10,844.28 and 4,321.40

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Solution

The fourth proportional to 7,858.13, 10,844.28 and 4,321.40 is: 5,963.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,858.13 : 10,844.28 = 4,321.40 : x
  2. Step 2: Convert to fraction form
    7,858.13/10,844.28 = 4,321.40/x
  3. Step 3: Cross multiply
    7,858.13x = 10,844.28 × 4,321.40
  4. Step 4: Simplify right side
    7,858.13x = 46,862,471.59
  5. Step 5: Solve for x
    x = 46,862,471.59/7,858.13
  6. Step 6: Final answer
    x = 5,963.57

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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.