Home / 7,289.40-10,935.45-2,359.20

Finding the Fourth Proportional to 7,289.40, 10,935.45 and 2,359.20

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Solution

The fourth proportional to 7,289.40, 10,935.45 and 2,359.20 is: 3,539.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,289.40 : 10,935.45 = 2,359.20 : x
  2. Step 2: Convert to fraction form
    7,289.40/10,935.45 = 2,359.20/x
  3. Step 3: Cross multiply
    7,289.40x = 10,935.45 × 2,359.20
  4. Step 4: Simplify right side
    7,289.40x = 25,798,913.64
  5. Step 5: Solve for x
    x = 25,798,913.64/7,289.40
  6. Step 6: Final answer
    x = 3,539.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.