Home / 7,485.84-10,319.52-5,240.64

Finding the Fourth Proportional to 7,485.84, 10,319.52 and 5,240.64

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Solution

The fourth proportional to 7,485.84, 10,319.52 and 5,240.64 is: 7,224.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,485.84 : 10,319.52 = 5,240.64 : x
  2. Step 2: Convert to fraction form
    7,485.84/10,319.52 = 5,240.64/x
  3. Step 3: Cross multiply
    7,485.84x = 10,319.52 × 5,240.64
  4. Step 4: Simplify right side
    7,485.84x = 54,080,889.29
  5. Step 5: Solve for x
    x = 54,080,889.29/7,485.84
  6. Step 6: Final answer
    x = 7,224.42

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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.