Home / 7,557.20-10,428.88-4,200.32

Finding the Fourth Proportional to 7,557.20, 10,428.88 and 4,200.32

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Solution

The fourth proportional to 7,557.20, 10,428.88 and 4,200.32 is: 5,796.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,557.20 : 10,428.88 = 4,200.32 : x
  2. Step 2: Convert to fraction form
    7,557.20/10,428.88 = 4,200.32/x
  3. Step 3: Cross multiply
    7,557.20x = 10,428.88 × 4,200.32
  4. Step 4: Simplify right side
    7,557.20x = 43,804,633.24
  5. Step 5: Solve for x
    x = 43,804,633.24/7,557.20
  6. Step 6: Final answer
    x = 5,796.41

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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.