Home / 7,899.16-10,899.60-4,542.10

Finding the Fourth Proportional to 7,899.16, 10,899.60 and 4,542.10

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Solution

The fourth proportional to 7,899.16, 10,899.60 and 4,542.10 is: 6,267.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,899.16 : 10,899.60 = 4,542.10 : x
  2. Step 2: Convert to fraction form
    7,899.16/10,899.60 = 4,542.10/x
  3. Step 3: Cross multiply
    7,899.16x = 10,899.60 × 4,542.10
  4. Step 4: Simplify right side
    7,899.16x = 49,507,073.16
  5. Step 5: Solve for x
    x = 49,507,073.16/7,899.16
  6. Step 6: Final answer
    x = 6,267.38

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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.