Home / 2,905.64-4,358.88-1,672.84

Finding the Fourth Proportional to 2,905.64, 4,358.88 and 1,672.84

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Solution

The fourth proportional to 2,905.64, 4,358.88 and 1,672.84 is: 2,509.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,905.64 : 4,358.88 = 1,672.84 : x
  2. Step 2: Convert to fraction form
    2,905.64/4,358.88 = 1,672.84/x
  3. Step 3: Cross multiply
    2,905.64x = 4,358.88 × 1,672.84
  4. Step 4: Simplify right side
    2,905.64x = 7,291,708.82
  5. Step 5: Solve for x
    x = 7,291,708.82/2,905.64
  6. Step 6: Final answer
    x = 2,509.50

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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.