Home / 7,275.20-10,905.60-3,574.40

Finding the Fourth Proportional to 7,275.20, 10,905.60 and 3,574.40

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Solution

The fourth proportional to 7,275.20, 10,905.60 and 3,574.40 is: 5,358.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,275.20 : 10,905.60 = 3,574.40 : x
  2. Step 2: Convert to fraction form
    7,275.20/10,905.60 = 3,574.40/x
  3. Step 3: Cross multiply
    7,275.20x = 10,905.60 × 3,574.40
  4. Step 4: Simplify right side
    7,275.20x = 38,980,976.64
  5. Step 5: Solve for x
    x = 38,980,976.64/7,275.20
  6. Step 6: Final answer
    x = 5,358.06

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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.